Eager to return to acting, Margot Kidder read for the character of Lois Lane in the 1978 superhero film Superman: the Movie, in the spring of 1977, only one month before principal photography was scheduled to begin. Kidder was subsequently flown to England for screen-tests. Upon meeting with director Richard Donner, Kidder tripped while walking into the room. Donner recalled: "I just fell in love with her. It was perfect, this clumsy behaviour." She was ultimately cast in the role, which would become her most iconic.