During childhood, Gyllenhaal had regular exposure to filmmaking due to his family's deep ties to the industry. As an 11-year-old he made his acting debut as Billy Crystal's son in the 1991 comedy film City Slickers. His parents did not allow him to appear in the 1992 film The Mighty Ducks because it would have required him leaving home for two months. In subsequent years, his parents allowed him to audition for parts, but regularly forbade him to take them if he were chosen. He was allowed to appear in his father's films several times. Gyllenhaal appeared in the 1993 film A Dangerous Woman (along with sister Maggie); in "Bop Gun" a 1994 episode of Homicide: Life on the Street; and in the 1998 comedy Homegrown. Along with their mother, Jake and Maggie appeared in two episodes of Molto Mario, an Italian cooking show on the Food Network. Prior to his senior year in high school, the only other film not directed by his father in which Gyllenhaal was allowed to perform was the 1993 film Josh and S.A.M., a little-known children's adventure. Gyllenhaal graduated from the Harvard-Westlake School in Los Angeles in 1998, then attended Columbia University, where his sister was a senior and from which his mother had graduated, to study Eastern religions and philosophy. Gyllenhaal dropped out after two years to concentrate on acting, but has expressed intentions to eventually finish his degree. Gyllenhaal's first lead role was in October Sky, Joe Johnston's 1999 adaptation of the Homer Hickam autobiography Rocket Boys, in which he portrayed a young man from West Virginia striving to win a science scholarship to avoid becoming a coal miner.