Who directed the Tamil language legal drama whose basic plot and lead character are copied from the show in which the actor who has won two Academy awards for his role in the mystery drama "Mystic River: and the biopic "Milk" played a father with a developmental disability? 
Deiva Thirumagal: Deiva Thirumagal (English translation: "God's Daughter") is a 2011 Indian Tamil-language legal drama film written and directed by A. L. Vijay and produced by M. Chinthamani and Ronnie Screwvala that features Vikram in the lead role as a mentally challenged adult with the maturity of a six-year-old boy, while Baby Sarah, Anushka Shetty, Amala Paul and Nassar portray other pivotal roles. Deiva Thirumagal:  The film has its basic plot and lead character copied from the 2001 American film "I Am Sam" written and directed by Jessie Nelson, and starring Sean Penn as a father with a developmental disability and Dakota Fanning as daughter The film released on 15 July 2011 along with a dubbed version in Telugu titled Nanna. Sean Penn: Sean Justin Penn (born August 17, 1960) is an American actor, filmmaker, and political activist.
i don't know