LOS ANGLES: Bradley Cooper is a seriously good guy!While filming his new film, American Hustle, on a New York street, the actor was approached by two young women who said it was their best friend’s birthday, that she was a huge fan and would be thrilled to meet him. Cooper told the girls to bring her over to the set - but they explained their starstruck pal was stuck in her office on the 20th floor, and her boss wouldn’t let her leave, according to American tabloid the National Enquirer. “Just give me a few minutes to finish my scene and I’ll go up with you,” promised Brad.–SB