 In the latter two films of the "Scream" horror trilogy, a film-within-a-film format is used when the events of the first film spawn their own horror trilogy within the films themselves.In "Scream 2", characters get killed while watching a film version of the events in the first "Scream" film, while in "Scream 3" the actors playing the trilogy's characters end up getting killed, much in the same way as the characters they are playing on screen.In the latest "Scream" movie, "Scream 4", in the opening sequence, two characters are watching Stab 7 before they get killed.