From Xojo Documentation
| This item was deprecated in version 2019r2.
Please use Movie.Open as a replacement.
Opens the FolderItem to be read as a movie and returns its movie as a Movie object.
Nil is returned if the movie can’t be read.
This example displays an open-file dialog box that lets the user select a QuickTime movie. The QuickTime movie is then copied into the Movie property of a MoviePlayer control.