Here are three things you didn't know about Jennifer Lopez's new film "The Boy Next Door": It is totally entertaining, a great showcase for everyone in the cast, and shockingly scary. 

But because it's been a couple of years since her last big acting project, we had to wonder: Do you ever have to re-learn acting?

"When I do go back to acting and performing, it's always like, 'Did I forget how to do this?'" Lopez told us. "I've always kind of juggled between music and movies and all the other things I do, the other businesses I'm involved with... but it is a natural thing for me. It's just like getting back on a bike."

Check out our interview to hear how the "American Idol" judge feels about acting, her favorite roles to date, and the 25th anniversary of "In Living Color."