Watch LookMovie. Persona turns a cinematic gaze on Écran Somnambule (2012), a performance by Latifa Laâbissi, that is in turn based on the film “Mary Wigman tanzt” (1930), an excerpt of her “Hexentanz” (1926). In the film, a physical experience of the disruptive power of the masked figure is conveyed in a circumscribing camera movement.