Renee Zellweger stepped out without rumored beau Bradley Cooper at Tuesday night’s celebration for her new movie, “My One and Only.” She went to Rouge Tomate on 60th Street for the Skyy Vodka after- party and was spotted “chatting up two good-looking guys at the bar.” Meanwhile, Cooper brought his parents instead of Zellweger to Alyssa Milano and David Bugliari‘s wedding Saturday in New Jersey, where Jeremy Piven played drums with the Starlight Orchestras.