Rex Features
The Failure To Launch star was reportedly spotted enjoying a romantic dinner in an Italian restaurant in New York with Zellweger, where onlookers said they acted like a perfect couple.
One witness told RadarOnline: "He pulled her chair out for her when she sat down and he kissed her on the hand. If they're just friends, they were being awfully affectionate! Throughout the dinner they were playful and flirty."
WENN also reported that the Case 39 co-stars were snapped on holiday in Spain over the weekend.
Cooper was recently romantically linked to Jennifer Aniston.
