That actually sounds like a product somebody in the television and movie industry might buy.

Dynamic adjustment of fixed aspect ratio film imagery to non-native sizes without stretch or obvious distortion. Guess all the added edges accurately enough that audiences won't notice.

4:3 <-> 16:9 <-> 143:100 (IMAX) <-> 11:8 (Academy) <-> 3:2 (35mm) <-> 16:10 (tablets/desktops)

Make a new movie look like a classic b/w silent, then give it the correct frame.

Adapt any movie to smoothly work on IMAX displays.