He is best known for his roles as John Cassellis in Haskell Wexler 's `` Medium Cool '' and Max Cherry in Quentin Tarantino 's `` Jackie Brown '' , the latter garnering him a nomination for the Academy Award for Best Supporting Actor .
He is best known for his role as Max Cherry in Quentin Tarantino 's `` Jackie Brown '' ( 1997 ) , which got him an Academy Award nomination for Best Supporting Actor . He is also known for his roles as John Cassellis in Haskell Wexler 's `` Medium Cool '' ( 1969 ) .