We have ploughed through the Apple TV (iTunes) movies catalog so you don't have to. Here's a list of all titles in 4K HDR (HDR10 or Dolby Vision) and Dolby Atmos that we have found.

Update 29.8.2023:
Indiana Jones and the Dial of Destiny
Elemental
Avatar (2009)
The Wolf of Wall Street
Ferris Bueller's Day Off
The Blackening
Wild Things
Les Miserables (2012)
National Lampoon's Vacation
Le Mepris (Contempt)
The Sting (1953)
2 Guns
Kandahar
Insidious
Kick-Ass 2
Suspiria
The Italian Job (1969)
The Beanie Bubble
Stephen Curry: Underrated
Still: A Michael J. Fox Movie
Tetris
Spirited
Cha Cha Real Smooth
Oldboy (2003)
East of Eden (1955)
Rio Bravo (1959)
The Boy, the Mole, the Fox and the Horse
Jaws 2
Terrifier 2
Marlowe
Freeway II: Confessions of a Trickbaby
Hypnotic
Detective Knight: Independence
Cinderella (1950)
Sleepy Hollow
Enter the Dragon
Hustle & Flow
Babylon 5: The Road Home
Roman Holiday (1953)
The Nutty Professor (1963)
No Hard Feelings

 Earlier updates
New features: 
- Movie pages (click the title) with more information about plot, video/audio formats, availability, DI etc.
- Each movie has a direct link to the Apple TV (iTunes) store

Update 8.8.2023:
Spider-Man: Across the Spider-Verse
Asteroid City
The Super Mario Bros Movie
John Wick: Chapter 4
The Little Mermaid
Evil Dead Rise
The Naked Gun: From the Files of Police Squad
The Naked Gun 2½: The Smell of Fear
Naked Gun 33⅓: The Final Insult
World War Z (2013)
The Covenant
Anatomy of a Murder (1959)
Guardians of the Galaxy: Vol 3
Fast X
Transformers: Rise of the Beasts
Resident Evil: Death Island
The Flash
Annie (1982)
Knights of the Zodiac
Insidious: The Red Door
Beau is Afraid
Ant-Man and The Wasp: Quantumania
Organ Trail
The Prince of Egypt (1998)
I Still Know What You Did Last Summer (1999)
Paint
Sisu
Big George Foreman
One Ranger
Love Again
Joy Ride
Earth Mama
What's Love Got To Do With It?
Chevalier
Showing Up
Polite Society
Fool's Paradise
When You Finish Saving the World
Justice League x RWBY
Batman: The Doom That Came to Gotham
Pi (2023)
Every Body
The Son
Significant Other
Book Club: The Next Chapter
Buddy Games: Spring Awakening
You Hurt My Feelings
Ruby Gillman Teenage Kraken
Sympathy for the Devil (2023)
About My Father
The Machine
Are You There God? It's me Margaret
The Man From Toronto
Incantation
Blackberry

Update 4.5.2023:
Scream VI
65
Ghosted
Shazam! Fury of the Gods
Rocky III
Rocky II
Creed III
Cool Hand Luke (1967)
The Maltese Falcon (1941)
Rebel Without a Cause (1955)
Superman IV: The Quest for Peace
Superman III
Superman II
Escape from Alcatraz
Kiss The Girls (1997)
Poltergeist (1982)
Casablanca (1942)
Renfield
The Pope's Exorcist
8 Mile
National Lampoon's Christmas Vacation
Licorice Pizza
To Kill a Mockingbird (1962)
I Know What You Did Last Summer
Dungeons & Dragons: Honor Among Thieves
Beautiful Disaster
Mafia Mamma
How to Blow Up a Pipeline
Moving On
Jesus Revolution
A Thousand and One

Update 10.4.2023:
Avatar: The Way of Water
Star Trek V: The Final Frontier
Star Trek VI: The Undiscovered Country
Star Trek VII: Generations
Star Trek VIII: First Contact
Star Trek IX: Insurrection
Star Trek X: Nemesis

Update 22.03.2023:
Highlander
Reservoir Dogs
Cocaine Bear
Knock at the Cabin
Training Day (2001)
The Return of Swamp Thing
Kubo and the Two Strings
Airplane II: The Sequel
Creature from the Black Lagoon (1954)
Phantom of the Opera (1943)
The Bride of Frankenstein (1935)
The Whale
Operation Fortune: Ruse de Guerre
Planes, Trains and Automobiles
Terms of Endearment (1983)
Plane
A Man Called Otto
Children of the Corn (2020)
Missing
The Ritual Killer
80 for Brady
Maybe I Do
Magic Mike's Last Dance
Women Talking
The Devil Conspiracy
Living (2022)
Infinity Pool
Detective Knight: Redemption
Marcel the Shell with Shoes On
Aqua Teen Forever: Plantasm
Puss in Boots
ParaNorman
Coraline
The Boxtrolls
The Core (2003)
Dead for a Dollar
Secret Headquarters
From Here to Eternity (1953)
Another 48 Hrs.
Sharper
Alice, Darling
The Eternal Daughter
The Inspection
Of an Age
Armageddon Time
Empire of Light
Spoiler Alert
5000 Blankets
See how They Run
God's Creatures
Mortal Kombat Legends: Snow Blind
A Christmas Story Christmas
Legacy Peak
Just Like Heaven (2005)
Revolutionary Road (2008)
Team America World Police
Sharp Stick

Update 2.2.2023: 
Black Panther: Wakanda Forever
Scream 2
I Wanna Dance with Somebody
The Last Picture Show (1971)
Strange World
Megan
Babylon
Emancipation
Causeway
Puss in Boots: The Last Wish
Mindcage Prison Mentale
Violent Night
R.I.P.D.
Annie
House Party
The Independent
Louis Armstrong's Black & Blues
Devotion
The Menu
To Leslie
The Offering
The Old Way
The Devil's Workshop
Twas the Fight Before Christmas

Update 15.12.2022: 
Pulp Fiction
The Polar Express
Black Adam
A Christmas Story
Wayne's World
Amsterdam
Shrek 2
Poker Face
Elf
TILL
Rudolph the Red-Nosed Reindeer
Frosty the Snowman
Santa Claus is Comin' to Town
She Said
TAR
8-bit Christmas
Smile
Halloween Ends
Ticket to Paradise
Emily The Criminal
Fright Night
The Fabelmans
The Banshees of Inisherin
Bones and All
The Woman King
Prey for the Devil
Lyle, Lyle, Crocodile
Lamborghini

Update 28.10.2022: 
Nope
Bullet Train
Jeepers Creepers: Reborn
The Infernal Machine
Aeon Flux
I'll Always Know What You Did Last Summer
Blue Hawaii
The Greatest Beer Run Ever
Holiday Inn (1942)
Barbarian
Don't Worry Darling
Confess, Fletch
Pearl
Where the Crawdads Sing
DC League Of Super-Pets
Sidney
Raymond & Ray
Thor: Love And Thunder
After Ever Happy
The Big Chill
Sniper: Rogue Mission
The First Wives Club
Father of the Bride
The Lost Boys
Fall
Vesper
Clearks III
The Good House
Bodies Bodies Bodies
The Invitation
Bros
Batman and Superman: Battle of the Super Sons
Marcel the Shell with Shoes On
Detective Knight:Rogue
Breaking
Jerry and Marge Go Large
Three Thousand Years of Longing
Beast
Orphan: First Kill
Easter Sunday
Spin Me Round
The In Between
DC Showcase: Constantine - The House of Mystery
Coast
Let Them All Talk
Jockey

Updated 23.8.2022:
Top Gun: Maverick
Inglourious Basterds
Minions: The Rise of Gru
The Addams Family (1991)
Lightyear
Breakdown (1997)
After Yang
Crimes of the Future
Rocky IV: Rocky vs. Drago
The Bob's Burgers Movie
The Humans
Men
The Spine of Night
Murder at Yellowstone City
Memory
Last Seen Alive
Family Camp
Mr. Malcolm's List
Deep in the Heart
Watcher
Mr. Malcolm's List
Last Seen Alive
The Forgiven (2021)
A Better Tomorrow (1986)
Mrs. Harris Goes to Paris (2022)
Rogue Agent
Vengeance
Watcher
Vivo
Cinderella (2021)
FireStarter
Jazz Fest: A New Orleans Story
National Champions
Brian and Charles
Escape the Field

Updated 25.7.2022:
Jurassic World Dominion
The Northman
The Black Phone
The Unbearable Weight of Massive Talent
Heavy Metal (1981)
Pinocchio (2019)
Doctor Strange in the Multiverse of Madness
Doom
Giant (1956)
Fantastic Beasts: The Secrets of Dumbledore
Raging Fire (Atmos only)
The Outpost (2019)
Ray Donovan: The Movie
The Bad Guys
Downton Abbey: A New Era
Saboteur (1942)
The Trouble with Harry (1955)
Ran (1995)
Paranormal Activity: Next of Kin
The Witches (2020)
Moonshot
Fatherhood
Father Stu
Green Lantern: Beware My Power
WarHunt

Updated 10.5.2022:
Uncharted, Death on the Nile, Moonfall, The Batman, Jackass Forever, Turning Red, Sonic the Hedgehog 2, Benedetta, Morbius, The Fallout, Singin' in the Rain (1952), Shadow of Doubt (1943), Family Plot (1976), Marnie (1964), Smokin Aces (2006), Ambulance, The Hills Have Eyes (1977), Vinyl Nation, Kimi, The Outfit (2022), The Lost City (2022), The Contractor, Batman: Year One, Queenpins, Summer of Soul (or When the Revolution Could Not Be Televised), Desperate Riders, Jimmy Neutron: Boy Genius, X (2022), 7 Days (2022), The Devil You Know, Fortress: Sniper's Eye, Above Top Secret: The Technology Behind Disclosure, DC Showcase: Constantine - The House of Mystery, You Won't Be Alone

Updated 23.3.2022:
The Godfather, The Godfather: Part II, The Godfather: Part III, Spider-Man: No Way Home, Nightmare Alley, Red Eye, Young Adult, The Rugrats Movie, Ordinary People (1980), Rumble, Marry Me, Desperate Riders, American Refugeem Dog (2022), Gold (2022), Studio 666, Cyrano

Updated 4.3.2022:
Scream (2022), The Untouchables (1987), West Side Story (2021), The Green Mile (1999), The King's Man, The Guest (2014), The Outsiders (1983), Best Laid Plans, C'mon C'mon, Julia, Popovich: Road to Hollywood, The Last Airbender, Eddie, The 355, La Liste: Everything or Nothing, Belfast, Memories of Murder, The Kybalion, American Underdog, Blacklight, Ted K Unabomber, Red Rocket, Spencer, Redeeming Love

Updated 9.2.2022:
Citizen Kane (1941), The Truman Show, Hugo, The Karate Kid Part II, The Karate Kid: Part III, Dune (2021), Dracula (1931), Eternals, The Matrix Resurrections, Encanto, Total Recall, House of Gucci, Scream (2022), The Many Saints of Newark, Ghostbusters: Afterlife, Who Framed Roger Rabbit, Demons (1985), Underworld: Rise of the Lycans, Underworld, The Last Duel, The Mitchells vs the Machines, Ron's Gone Wrong, Halloween (1978), Halloween Kills, The French Dispatch of the Liberty, Kansas Evening Sun, Mad Max: Beyond Thunderdome, Mad Max 2: The Road Warrior, The Invisible Man (1933), Resident Evil: Welcome To Raccoon City, Venom: Let There be Carnage, King Richard, The Card Counter, Antlers, The Social Network, Juice (1992), Resident Evil: Vendetta, Stockholm Marathon, The Guest, Show Me The Father, The Adams Family 2, Shang-Chi and the Legend of the Ten Rings, The Transformers: The Movie, Copshop, Escape Room: Tournament of Champions, Clifford The Big Red Dog, The Man Who Shot Liberty Valance, Double Jeopardy, Heaven Can Wait, The Wall - Climb for Gold, Catwoman: Hunted, Depeche Mode: 101, Last Night in Soho, 2018: The Ultimate Test, Sing 2, Never Back Down: Revolt, Apex

Updated 9.11.2021: Now in 4K/HDR: Bond: No Time to Die, Scream (1996), Underworld: Awakening, Unbreakable (2000), Reminiscence, OLD, Needle in a Timestack, Malignant, The Card Counter, Cry Macho, Final Fantasy: The Spirits Within, Kingsglaive: Final Fantasy XV, The Eyes of Tammy Faye, Injustice, The Night House, Nine Days, Copshop, Blue Bayou, Two Yellow Lines, Old Henry, Dangerous, The Beta Test, One Shot. We've also added the Apple TV+ movies.
Now in Dolby Atmos: Bond: No Time to Die, Underworld: Awakening, OLD, Reminiscence

Updated 28.09.2020: New features:
- List has a fresh new design with movie covers, genre, year, runtime & more
- 4K DI / 2K DI information (what is sometimes referred to as Real 4K / Fake 4K)
- Current IMDb rating (click rating to go to IMDb)
- New filters let you filter on decade, IMDb rating, genre, 4K DI and more. Combine filters to narrow results
- Director & studio listed (use input field at the top to search for all movies by director, for example: Nolan).
iTunes 4K master list
You need the Apple TV 4K box and of course a 4K HDR TV to enjoy all of this. Alternatively, a recent Samsung TV, LG TV, Philips TV, Sony TV, Roku TV, Vizio TV or FireTV with the Apple TV app, although be aware that you only get iTunes' highest video bitrate on Apple TV 4K.

We'll keep the list updated. Are we missing some titles? Please share your findings in the comments section.

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 Filters
Decade:
1950s & earlier1960s1970s1980s1990s2000s2010s2020s
Genre:
Sci-FiActionAdventureAnimationThrillerFantasyHorrorDramaRomanceComedyMusicalDocumentary
IMDb rating:
Over 6Over 7Over 8Over 9
Picture/audio:
4K DIHDR10Dolby VisionDolby Atmos
4K DI = 4K Digital Intermediate; movie was edited in 4K (special effects may be lower-res)
2K DI = 2K Digital Intermediate; movie was edited in 2K and upscaled before release

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