That is a good idea but it's probably not cost effective that way. Essentially there would have to be two versions of the film for that to work.
It should cost next to nothing, films are all sent out digitally now. TV stations can afford to do it, so you better believe the movie studio can. Plus they do it all the time for "director" cuts and the like when they come out for home use. Only issue I see is idiots complaining when they walk into the wrong one and freak then want to sue the theater/studio/etc...