I don't feel like taking my girlfriend to the movies
Why don't you want to take her to the movies?
I don't like the film industry, especially the new generation films it produces
If you're not interested in something it makes sense that you wouldn't want to take her to it. You're in your right to not want to do something that you're not interested in. Have you thought about asking to take her to go do something else?
It's not that I don't want to do something interesting with her.
Then  ask her want other things she wants to do or better yet, do things with her that you like doing. She would appreciate that time spent together.