I recommend this app to everyone who wants to learn a foreign language speaking.
This App can repeatedly play a selected short range of the movie, then immediately record yourself and playback it so you can practice speaking as follow your favorite YouTubers example.
This app can be for practice speaking, acting, singing, and any other performing actions. How to use depends on you.
You can also import movie files from other platforms with connecting to iTunes or Finder(macOS 10.15 or higher).