Premise: Margaret Ruth `` Margot '' Kidder ( born October 17 , 1948 ) is a Canadian American actress and activist . She rose to fame in 1978 for her role as Lois Lane in the Superman film series , opposite Christopher Reeve . Kidder began her career in the 1960s appearing in low-budget Canadian films and television series , before landing a lead role in Quackser Fortune Has a Cousin in the Bronx ( 1970 ) . Her performance as Kathy Lutz in the blockbuster horror film The Amityville Horror ( 1979 ) gained her further mainstream exposure . She has also acted in theatrical productions , most notably appearing on Broadway in a 2002 production of The Vagina Monologues .
Hypothesis: Margot Kidder is a person who acts.
Label: ENTAILMENT