Was this just a hook up or is there something more to it?

To me, it sounds like he is interested in a real relationship with you. Apparently you don't know this, but in college "watching a movie" is shorthand for "let's go back to my room and have ." The fact that he didn't try to have with you says volumes to me. He actually respects you. And also, if it was just a hook up, chances are he wouldn't be consistently texting with you. He would only text you if he was interested in hooking up again.