In my Twitter account @bisexualmovies I post movies that are about bisexuality, that can be read as bi related or that have bisexual characters in them.
Some of the movies posted might have stories that are mainly about a lesbian, gay or a straight character; not focused in the bi character or in their bisexuality - it can be a side plot, just a bi person hanging there and etc.
The bi character might not be a good person, and the movie might not be an awesome bi rep, just again a movie with someone bi that can be fun in some way to watch. Of course it's not supposed to romanticize bad people/bad reps though.
For last, some of the movies might not be seen as bi related for some viewers, and that's ok, but please don't complain about others interpretations. I'll only posts ones that are with canon/implied bi characters or ones that can be interpreted as bi, no absolute headcanon.
