Is it normal to cry during/after movies?

I have cried during movies before, and i've always thought it was normal, but those were really, really sad movies.

Now i have been recently crying during movies/ shows that aren't that sad, like Paranormal Activity, the show Degrassi, MTV show If You Really Knew Me, and some other movies.

Also, last week, my little sister had a stuffed animal, and was going "Roarrrr!", and for some weird reason, it made me think of The Incredible Hulk, when he lost his mother, and i started crying.

Is it normal to cry during or after movies and or shows?