Split screen (video production) in the Russian silent film "The Queen of Spades" (1916), directed by Yakov Protazanov, where one screen depicts reality and the other a character's inner desires. This technique has been used to portray twins in such films as "Wonder Man" (1945), "The Dark Mirror" (1946), "The Parent Trap" (both the 1961 original and the 1998 remake), and "Adaptation" (2002). In the 1961 version of "The Parent Trap", conversations between the twins were simulated by filming the actress (Hayley Mills) as she stood at the left of the frame facing right, then filming her again, standing at the right and facing
Valley of the Dolls (film) Valley of the Dolls (film) Valley of the Dolls is a 1967 American drama film based on the 1966 novel of the same name by Jacqueline Susann. It was directed by Mark Robson, produced by Robson and David Weisbart, and stars Barbara Parkins, Patty Duke, Sharon Tate, and Susan Hayward. Three young women meet when they embark on their careers. Neely O'Hara (Duke) is a plucky kid with undeniable talent who sings in a Broadway show, of which legendary actress Helen Lawson (Hayward) is the arrogant star, while Jennifer North (Tate), a beauty with limited talent, is in the chorus.