By Breaking Celebrity News Staff

Hmmm… they certainly look awfully chummy.

Ryan Reynolds and Sandra Bullock showed their mutual affection on the red carpet for his new film The Change Up in Los Angeles Monday night.

Reynolds, 34, and Bullock, 47, had palpable chemistry in the hit movie The Proposal and became close friends off screen, especially in light of both of their marriages publicly imploding.

Despite ongoing rumors that the two are a couple, they insist they are just good friends.