<P> In August 1984, Milano made her film debut in the coming - of - age drama Old Enough, which she recalled as a "great" way for "starting out". The film was screened at the Sundance Film Festival, where it won First Prize . </P> <P> Milano auditioned as Tony Danza's daughter on the sitcom Who's the Boss? After winning the part, she and her family moved to Los Angeles, where the show was produced . It premiered on ABC on September 20, 1984 . Throughout Who's the Boss?, Milano developed a close relationship with co-star Danza . Commenting on their early years together, Danza observed: "She was just the sweetest little girl of all time...She became much like my daughter ." The series established Milano as a teen idol, and provided her opportunities for other roles . Her education was split between school and an on - set tutor with whom Milano would work for three hours a day . </P> <P> At age 12, Milano co-starred in Commando as Jenny Matrix, the daughter of John Matrix (Arnold Schwarzenegger). </P> <P> On stage, she starred in Tender Offer, a one - act play written by Wendy Wasserstein, All Night Long by American playwright John O'Keefe, and the first American musical adaptation of Jane Eyre . She returned to the theater in 1991, producing and starring in a Los Angeles production of Butterflies Are Free from December 26, 1991, to January 19, 1992 . </P>

Who played arnold schwarzenegger's daughter in commando
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