Frenemies Britney Spears and Lindsay Lohan will work together on a new Ian Shroder-directed film, ironically titled When Good Girls Go Bad, according to new reports from the Rumor Mill.

“They will star as rivals in the movie which will be set in New York and there’s lots of excitement about it,” a film insider says.

But the potentially volatile combination of having Britney Spears in the same room Lindsay Lohan and her notoriously addictive personality has film producers shaken:

“One producer told Ian it could be a potential disaster, but he laughed it off and said he was even willing to pay the insurance himself.”