GEENA DAVIS AND SUSAN SARANDON CELEBRATE THE  30TH ANNIVERSARY OF THELMA AND LOUISE  WITH SPECIAL DRIVE-IN SCREENING EVENT  MGM celebrated the film’s 30th anniversary last night with a special drive-in screening and Q&A with Susan Sarandon, Geena Davis and the film’s screenwriter Caillie Khouri. Davis and Sarandon also posed for pictures with the film’s Ford…