Bella Thorne of Alexander and the Terrible, Horrible, No Good, Very Bad Day joins Mae Whitman (Parenthood) and Sarah Hyland (Modern Family) in a hilarious new film called The DUFF. The American teen comedy also stars Alison Janney, Robbie Amell, Ken Jeong, and Bianca A. Santos. Directed by Ari Sandel, it is based on a book of the same name by Kody Keplinger.

‘DUFF‘ stands for ‘Designated ugly fat friend,’ and Mae Whitman takes on that persona in her role as Bianca Piper. Bella Thorne, in her role as Madison Morgan, is known as the high school’s label maker, and does all she can to reenforce the title.

On Thursday night, Bella Thorne, Mae Whitman, Sarah Hyland, and many of their costars walked the red carpet at the Hollywood premiere of The DUFF at TCL Chinese 6 Theatres. Lots of celebrities attended the event.

Bella Thorne spoke with Newsday recently about her role as a mean girl. When told she was really mean in the film, Thorne had the following to say.

The hotties of @TheDUFF are here @maebirdwing @bellathorne http://t.co/lhq2Dp3zTP pic.twitter.com/1PmeqNDGLi

— Just Jared Jr. (@justjaredjr) February 13, 2015

“I know, I’m not the nicest,” she admitted.

And when asked what it feels like to play the villain, she also admitted that while it’s fun at times, it’s not always easy.

“It’s also a little . . . sad,” she said. “Because Mae Whitman is so cute, and I love her so much. She’s only like 5 foot and I’m 5-8, and I felt like in some scenes I was eating her. [She giggles again.] I was so in her face all the time. She was just making me laugh between takes. It was like really hard to be mean.”

Bella Thorne, Mae Whitman, Sarah Hyland and the rest of the cast of The DUFF will soon be coming to a theater near you. The DUFF opens nationwide on February 20th.