Melissa Rivers Plays Mom Joan Rivers in 'Joy' - First Look Clip!

Melissa Rivers transforms into her late mom Joan Rivers while playing her in the upcoming movie Joy.

The 47-year-old Fashion Police producer plays Joan during a scene set at QVC and she interacts with Jennifer Lawrence‘s character Joy Mangano, a real-life entrepreneur.

“It was David‘s idea,” Melissa told People. “I literally one day got a call saying David O. Russell would like to meet you. Huh? What?”

“I thought, ‘Seriously when am I ever going to get to work with Bradley Cooper, Jennifer Lawrence and David O. Russell?’” she added. “I was like, ‘Okay, I’m in.’”

“My mother had a couple lovely encounters with Bradley and she was a fan of Jen‘s even though there was a situation once at Fashion Police where someone said something and Jennifer didn’t like it and kind of fired back,” Melissa continued. “It wasn’t my mother who said it and it kind of got lost in translation. The first thing Jennifer said was, ‘Even though we had that disagreement that really had nothing to do with her, I was a huge fan,’ and quoted back her favorite Fashion Police line ever to me: ‘That dress is so ugly it looks like it would be good at math.’ So here she is quoting my own show back to me, then she said to David, ‘I’m so happy you brought me someone to play with!’”