I review 4K Blu-ray for a living and these 6 discs show what 4K can do for classic movies
Cinema's biggest classics restored in 4K
I love 4K Blu-ray. It's my most used source for testing the best TVs and best soundbars. I'm also a collector, always on the lookout for new discs.
I get to evaluate a ton of discs for the Blu-ray Bounty, a monthly column where we review picture and sound quality of the latest 4K releases. An area where I've seen 4K make a huge impact is with classic movies (think 1940s through the 1960s), where a 4K restoration breathes new life into these vintage films.
Below, I've picked six of my top 'classic' 4K Blu-rays. The list starts with one of the best-looking and sounding 4K discs I've tested, The Sound of Music. This delivers phenomenal color and detail, and the Dolby Atmos mix of the iconic soundtrack is a dream for home theater systems. The Good, the Bad and the Ugly demonstrates fine detail and is also an impressive showcase for audio.
Classic black-and-white thrillers such as Double Indemnity and Sunset Boulevard look exceptional in 4K, with strong contrast thanks to refined gradation of light and dark tones on both discs.
Finally, two of Japan's most influential movies, Seven Samurai and Godzilla (1954), look brilliant on 4K disc, with clean textures and powerful contrast.
Any one of these discs played on the best 4K Blu-ray players is sure to impress. Below, you'll find I’ve picked the best UK retailers to buy from, along with an explanation of why I rate each disc so highly.
6 classic movies on 4K Blu-ray
The Sound of Music
One of the most spectacular-looking 4K discs I've watched, The Sound of Music is breathtaking in 4K. Textures are crisp, from the mountains and fields to the characters' skin. But color is really where this restoration shines. They look bold and bright throughout, with one scene in a fruit market showing stunning oranges and reds, and shots of the green fields displaying wonderful vibrancy.
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The Sound of Music's Dolby Atmos soundtrack delivers one of cinema's greatest scores with real clarity. Vocals are crystal clear, and the music itself sounds precise and well-balanced. This disc is a real treat for home theater sound systems.
Double Indemnity
Double Indemnity was one of my first experiences of a great 4K restoration of a classic movie. This 4K release from The Criterion Collection delivers strong contrast with deep blacks, crisp whites and a refined range of gray tones. Textures have a 3D-like effect, bringing out the details in clothing.
There isn't much to write about the sound, as this disc features a monoaural soundtrack. Still, the speech is clear and it balances well with the dramatic score.
The Good, the Bad and the Ugly
The Good, The Bad and The Ugly looks sensational on Arrow Video's 4K release. Sourced from the original 2-perf Techniscope negative, where this restoration shines is its detail. Close-up shots really show dirt and facial hair, as well as weather-beaten skin and frown lines with great accuracy. Colors also appear vibrant, the blue skies in particular.
The DTS-HD MA 5.1 soundtrack I listened to during my evaluation was superb. Ricocheting bullets during gunfights sound accurately mapped, galloping horses deliver real rumble and the film's iconic soundtrack is bright and clear throughout. This disc sounds excellent when played through one of the best soundbars.
Seven Samurai
This 4K restoration of Seven Samurai was handled by Toho, the original production company, and it did an excellent job. Contrast is brilliant, with a perfect balance of light and dark tones with the gray tones in between. Shadow detail during night scenes is also impressive. Textures are crisp, with clothing and skin looking refined.
With a DTS-HD MA 1.0 soundtrack, Seven Samurai won't test the limits of your home theater. Even so, dialogue is clear, the score sounds nicely cleaned up and action-packed scenes with clashing swords have a good level of punch.
Sunset Boulevard
Sunset Boulevard is another black-and-white movie that really benefits from the 4K treatment. Light and dark tones are well balanced for strong-contrast throughout, and textures look true-to-life.
The Dolby TrueHD 5.1 soundtrack has been expertly handled. Speech is crystal clear in Gillis' narration, and there's a clean delivery of the movie's tense, string-heavy score.
Godzilla (1954)
The Criterion Collection's 4K restoration of Godzilla is visually impressive. Characters and locations look authentic and detailed. Contrast is powerful, with strong highlights such as neon signs during dark scenes. Blacks are deep, and there's a full range of gray tones. This is another excellent example of how a 4K restoration can freshen up a classic movie.
With a mono soundtrack, there's not much here to work out your home theater sound system. Still, dialogue is clear, explosions have good impact and Godzilla's iconic roar is cleanly delivered.

➡️ Read our full guide to the best 4k Blu-ray players
1. Best overall
Panasonic DP-UB820
2. Best budget
Sony UBP-X700
3. Best premium
Panasonic DP-UB9000
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James is the TV Hardware Staff Writer at TechRadar. Before joining the team, he worked at a major UK based AV retailer selling TV and audio equipment, where he was either telling customers the difference between OLED and QLED or being wowed by watching a PS5 run on the LG 65G2. When not writing about the latest TV tech, James can be found gaming, reading, watching rugby or coming up with another idea for a novel.
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