"A group of old friends that included Ryan and Sandra spent New Year's together at Sandra's restaurant Bess Bistro," her rep tells PEOPLE. "They all had a great time ringing in the New Year as they have in the past ... as nothing more than friends."
Despite speculation, a source close to Reynolds, 34, echoes the sentiment that there's nothing romantic in real life between the on-screen lovebirds, who starred in The Proposal together.
Meanwhile, Scarlett Johansson, 26, Reynolds's soon-to-be ex-wife, dined at the same restaurant on Dec. 28 with her pal Drew Barrymore.
Bullock, who's friendly with both Reynolds and Johansson from their days as a couple, stopped by the table to say hello to her fellow actresses during their meal, according to an observer.
With reporting by ALICIA DENNIS