This feature is now in most higher end models of home theater projectors. It's certainly nice to have, especially for sports. Mitsubsishi's implementation of of creative frame interpolation, takes 24 fps movies to 96fps, by interpolating 3, each different, new frames for each existing one. They call that True Film
For normal 60fps content, the frame rate is doubled to 120fps, with one new frame interpolated between every two frames. The setup can also reverse 2:3 pull-down and then implement CFI as it would if the movies were in their original 24fps. This one they call True Video.