 In the scene where Don Lockwood (Gene Kelly (I) (qv)) comes out of  his trailer to begin filming "The Dueling Cavalier," he emerges from  what was once the dressing room of 1930s MGM leading lady  Norma Shearer (qv). A few seconds later, Lina Lamont  (Jean Hagen (qv)) comes out of another dressing room nearby, and  she is wearing a huge wig ("Gee, this wig weighs a ton. What dope  would wear a thing like this?") that Shearer wore in  _Marie Antoinette (1938)_ (qv).