I guess I just don't see it but how do I change a movie detected as a TV show to Movie 
I'm suspecting that the movie was recorded on a channel from a custom source such as Pluto TV?
It's most likely the metadata from the guide that had it labeled as a TV show rather than a movie.
In any case, you can't change it in the metadata.
I think the only way to fix this problem is to move this recording and import it as a movie.
Ok, well shouldn't this be fixed in the app then. At least I get quite a lot of mislabeled recording and manually reimporting them seems kinda tricky for my wife and kids