The clean-cut stars have been cast in upcoming crime movie "Spring Breakers" by filmmaker Harmony Korine, who wrote the dark 1995 drama Kids.
The film will revolve around a gang of girls who hold up a fast food restaurant in order to fund their spring break vacation, and James Franco will play a drug dealer who bails them out of prison only to lure them into working for him.
And Gomez admits she can't wait to tackle a more serious role.
She tells MTV.com, "Right now we are wrapping up this year, and then beginning of next year I will be starting my new movie called Spring Breakers. I'm really, really excited about it.
"It's a different character than I have ever played before. It's a different kind of vibe I think than people are used to seeing me in. What you're going to see is more raw, I think. It's going to be raw and more about acting."