she appeared in the March 9, 1975, edition of The American Sportsman, learning how to hang glide, and providing the narration, with a remote microphone recording her reactions in flight; the segment concluded with Kidder doing solos soaring amid the Wyoming Rockies. She was also photographed by Douglas Kirkland for the March 1975 issue of Playboy, accompanied by an article written by Kidder herself. Kidder and McGuane married on August 2, 1976, but the marriage ended in divorce on July 21, 1977. During the marriage, Kidder stated that her self-esteem had faltered significantly, and she found it difficult to maintain a career in film while residing in Montana. Eager to return to acting, 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 [behavior]." She was ultimately cast in the role, which would become her most iconic. Filming lasted approximately eighteen months. Superman was released during Christmas 1978 and was a major commercial success, grossing $300 million worldwide. Kidder won a Saturn Award for Best Actress for her performance, which was deemed "most charming" by Vincent Canby in The New York Times. After completing filming for Superman, Kidder starred as Kathy Lutz in the supernatural horror film The Amityville Horror (1979), which further cemented her status as one of Hollywood's leading ladies. The Amityville Horror was a major commercial success, grossing over $86 million in the United States, but it received mixed reviews from critics. Janet Maslin of The New York Times, though giving the film a mixed review, said Kidder "stubbornly remains the bright-eyed life of the party [in the film]." In retrospect, Kidder called the film "a piece of shit." The same year, Kidder hosted an episode of the American sketch comedy TV show Saturday Night Live. On August 25, 1979, she married actor John Heard, but the couple separated only six days into their marriage. Their divorce was finalized on December 26, 1980. Kidder reprised her role as Lois Lane in Superman II (1980), though she publicly disagreed with the decision of producers Alexander Salkind and Ilya Salkind to replace Richard