Trent soon finds himself befriended by 10-year-old Devon ( Mischa Barton), and the movie deals with the difficulties in their friendship and the outside world. Once again, he portrayed a societal outcast as Trent, a working-class man living in a trailer, earning a living mowing lawns inside a wealthy, gated Kentucky community. In 1997, he found himself the star of another critically lauded film, Lawn Dogs (1997). The movie was not a box-office success, but it managed to generate a great deal of critical acclaim for itself and Sam. In Tom DiCillo's film, he found himself playing an eccentric named the Kid, a man-child living in a half-built mobile home in the middle of nowhere with a penchant for dressing like Davy Crockett, who manages to bring some much-needed chaos into the life of an electrical engineer played by John Turturro. It was the latter film that would prove to be his real break-out in the industry. In 1994, a Miller Ice beer commercial finally enabled him to quit his other jobs to concentrate on his acting career, which culminated in him having five movies out by 1996: Basquiat (1996) The Search for One-eye Jimmy (1994) Glory Daze (1995) Mercy (1995) and Box of Moonlight (1996). During this period he appeared in a variety of roles, such as the ABC Afterschool Specials (1972): Over the Limit (1990) (TV) and HBO's Lifestories: Families in Crisis (1992): Dead Drunk: The Kevin Tunell Story (Season 1 Episode 7: 15 March 1993) the head thug in Teenage Mutant Ninja Turtles (1990) and a guest-star turn in an Emmy Award-winning episode of Law & Order (1990), while working a string of regular day jobs and performing in plays. After graduating from high school, Sam returned to New York for good and for two years he had private training at the William Esper Acting Studio. His next big break was supposed to have come when he was slated to star in a short-lived NBC TV-series called Dream Street (1989), but he was soon fired. The plot revolved around three escaped mental patients who dressed up as clowns and terrorized three brothers home alone-Sam played the eldest of the brothers. While still in high school, he got his first big break when he appeared in the independent film Clownhouse (1989).
He made his acting debut when he was ten years old, alongside his mother, and later attended J Eugene McAteer High School in a program called SOTA. When Sam was five years old, his parents separated, at which point he and his father moved to San Francisco, where he subsequently grew up, while summers and other times were spent with his mother in New York. The family moved to New York when he was two years old, living first in the Bronx and later in Manhattan. Sam Rockwell was born on November 5, 1968, in San Mateo, California, the only child of two actors, Pete Rockwell and Penny Hess.