From Longman Dictionary of Contemporary EnglishPenn, SeanSean PennPenn, Sean /pen, ʃɔːn/(1960–) an Americanfilmactor, director, and producer. Films he has appeared in include Dead Man Walking (1995), I Am Sam (2001), and Mystic River (2003) for which he received an Oscar. Films he has directed include The Indian Runner (1991) and The Pledge (2001). His first wife was the popsingerMadonna. He is known for his political activism and for his criticism of GeorgeW. Bush and the war in Iraq.