This.Phasmal said:Eh, I'm so going to get chewed out for this...
She's in the right.
You can't control other people because of your own insecurities.
It's just a film, I don't think you should stop your girlfriend doing anything because of your issues. Your girlfriend obviously has made a choice to be with you, she doesn't seriously think she's going to jump through the screen and run off with a movie-star. It's natural to be attracted to people outside of your relationship, and suppressing that is not healthy.
Don't moan about her seeing the film, try and work on your issues. Hug her and ask for reassurance if you need to, but don't try and control her.
You can't restrict her life because of your own insecurities.
I don't have the hottest body in the world but that doesn't mean I'm entitled to stop my boyfriend watching films with hot women in them and I wouldn't ever want to anyway.