Evigan 'dressed as Willis for set prank'

Sorority Row star Briana Evigan has admitted that she dressed as co-star Rumer Willis for an on-set prank.

The actress, who plays good girl Cassidy in the slasher movie, told DS that she had borrowed the wardrobe of Willis's character Ellie for a joke.

"I came out as her. I put the wig on and the glasses and I had Vaseline tears all over my face, because she cries the whole movie," she explained.

"I came out hysterical and crying and I had my face covered. Everyone thought she was having a breakdown. I could hear someone on the walkie repeating it. And then I walked up to her and she didn't really notice it!"

Willis added: "No-one knew it was her, they were all like, 'What's wrong with Rumer?' It took me a second to [figure it out]."

Sorority Row revolves around a group of friends who make a pact to keep the death of their housemate a secret after she is accidentally killed in a sorority prank gone wrong. It arrives in cinemas on September 9.

> Click here to watch our full interview with Briana Evigan and Rumer Willis