Julia Stiles is so obsessed with pop queen Madonna, she found it nearly impossible to control her behaviour when she finally met her idol. THE OMEN star, 25, once had to discuss a movie script with the MATERIAL GIRL in her apartment, and was impressed by how controlled she managed to be. She says, "I went to her apartment to discuss a movie she was producing and I remember knocking on her door thinking, I'm going to Madonna's house. Okay, this is really happening! "I pretended it wasn't a big deal. Then we just talked about the movie and I wanted to shout: 'I went to see Desperately Seeking Susan about ten times!' But I tried to act cool around her."