Jake Gyllenhaal

During his childhood, Jake Gyllenhaal was regularly exposed to the film industry due to his family's deep ties to the trade. As an eleven-year-old, he was cast alongside Billy Crystal for his film debut in the 1991 film City Slickers. His parents, however did not subsequently allow him to appear in the 1992 film The Mighty Ducks, because it would have required him to be away from home for two months. In ensuing years, although his parents allowed him to audition for parts, they regularly forbade him to take them if he was chosen.
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An exception to this was if Gyllenhaal were to appear in one of his father's own films, and Stephen cast his son several times during his early career. Gyllenhaal appeared in the 1993 film A Dangerous Woman (along with his sister Maggie), in 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 Josh and S.A.M., a little-known children's adventure.
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Gyllenhaal graduated from the Harvard-Westlake School in Los Angeles in 1998, and then attended Columbia University (which his sister and mother also attended) to study Eastern religions and philosophy. Gyllenhaal dropped out after two years to concentrate on his acting career. He has stated that he hopes to return to school one day to finish his degree. Gyllenhaal's first lead role was in October Sky, Joe Johnston's 1999 adaptation of the Homer Hickam autobiography "Rocket Boys." He portrayed a young man struggling to win a science scholarship to avoid becoming a miner. The film earned $32 million and was described in the Sacramento News and Review as Gyllenhaal's "breakout performance".
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Source: Wikipedia