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
The Parent Trap (1961 film) father's house, pretending to be Susan. Sharon learns their father is engaged to a child-hating gold digger named Vicky Robinson (Joanna Barnes). Sharon calls Susan to tell her that their father is planning to marry Vicky, who is beautiful and dangerous, and that she must bring their mother to California immediately. Susan eventually reveals to their mother and grandparents the truth about their switching places. They are extremely happy to see Susan again, and Maggie and Susan fly to California. After Mitch and Maggie are reunited, they argue and the twins make their surprise appearance together. Mitch is extremely happy