Lindsay Lohan's mom Dina is making headlines again after a New York paper discovered she isn't who she says she is. Lohan Sr. is always described as a former Radio City Music Hall Rockette, Broadway actor and sometime commercial actress, but apparently the story is all made up. A spokesperson for Radio City did an exhaustive search and found no record of Dina Lohan or Donata Sullivan (her maiden name). "It's like claiming to have a degree from Harvard when you don't," said a source at Radio City. And an insider close to the family admits, "Look in SAG [the Screen Actors Guild]. Look in AFTRA [American Federation of Television & Radio Artists]. Dina isn't a member. She never did a Broadway show. She never did ads."