Actress Keira Knightley worries she's seen as a "bitch" by her friends after finding Hollywood stardom. The Pirates Of The Caribbean beauty finds it difficult to make friends because of her busy schedule, and barely has time to keep in touch with her old pals. She says, "I haven't stopped working for the last four years, I haven't. I don't really have any time off and I keep in touch by email. People say I have trouble making friends. I must come across like a real bitch to some people. "Even my parents are surprised by the fact that I haven't had any time off. I've been working too much. I'm living to work. I'll have to readdress that."