Heckerling and Mona May, the costume designer, collaborated to coordinate the iconic looks (that yellow plaid suit!) in the movie. In an interview with 20/20, Silverstone recalled dealing with all of the outfit changes. "I remember being so exhausted with costume fittings because I just didn't have any fashion sense at all at that age," the actress said. "So when I had to try 63 things on, I was just like, 'This is painful.'" Meanwhile, Rudd wore most of his own clothes on the set.