In fact, in addition to the resolution, each film has a lot of other useful information like plot, director, YouTube trailer, release date, HDR etc. Moreover you can simply browse the library composed of more than 550 movies all in 4K (native and not) to choose which movie to watch in the evening. With Real or Fake 4K you can immediately search for your favorite movies and see in which native resolution they were produced.
Not all the movies are recorded in native 4K, many of them are in fact simply reworked in post production from a Full HD resolution to a UHD (4K) resolution, which therefore cannot guarantee maximum quality.