I am sure most people who are considering purchasing this already know the story and have probably seen the movie many times over the years. It tells the story of the life of George Bailey (played by Stewart) as he grows up and resents his life over time, to the point where he is considering committing suicide until his guardian angel intervenes and shows him what would happen to the people in his life had he never been born. The movie is definitely a classic, even with some of the cheesiness and hokeyness that movies of that age are known for. That said, the acting and writing were very high-quality, and Stewart did a great job in navigating the character of George to becoming more of a jackass as his life went on. While the story does require you to believe that Stewart (who was in his late 30s when the movie was made) was just out of high school at the beginning of the movie and may have worked with a younger actor playing that part, Stewart made it work.
The 4k set is a two-disc set containing a UHD disc and a regular Blu-Ray disc. The UHD disc has the restored 4k black and white version of the film, and the regular Blu-Ray disc includes the colorized version in 1080p. Of course, some would see watching it in color as akin to blasphemy, but it is there for those who want it. The 4k restoration is wonderful, and the movie looks and sounds the best it has on physical media in UHD. There are about 45 min of extras, including a featurette on the restoration of the movie, secrets from the vault segment that gives insights into how the movie was made, and then a short 8-minute home-movie reel of the wrap party. Note that prior physical media releases of the film included a making-of featurette and the trailer, which are not included in this release. Ultimately, this is a reference-quality UHD release. If you do not yet own the movie on physical media, it is worth picking up. If you do own a prior release and really love the movie, it is worth double-dipping to get the 4k set as it is a significant upgrade to the A/V quality of the movie.