The 41-year-old actress, who is believed to have been dating the actor since last year, is interested in taking on a role in the sequel to the hugely popular comedy, Contactmusic reported.
"Renee loves the first movie and this just gives her and Brad a reason to hang out together on set. The funny thing is Renee looks like playing a girl the guys meet and one of them has a one-night-stand with her - only it's not Brad's character!" said a source.
The couple met while starring in the tense thriller Case 39, which focuses on a social worker who fights to save a girl from her abusive parents, and Cooper has recently said he loved working with the actress.
"I loved coming to work. I love acting with her. I can learn so much from her. I can't say enough about her. I just love her," said the 35-year-old actor, who is rumoured to have moved into a multi-million dollar mansion in California with Zellweger this summer.
