Find a word that actually describes it. You are obviously uncomfortable with homosexuality but just because someone is gay doesn't mean they are into the video or that's a good way to define homosexuality.
You can use the word "annoying". Annoying is acceptable. You can use the word "stupid." Stupid is acceptable.
Pitch Perfect by the way is not a gay movie. A gay movie generally focuses on homosexual romance as part of the main plot and while the audience is usually LGBT members, it's not just for them.