Eva Marie Saint will play Martha Kent, the adoptive mother of Clark Kent/Superman in Bryan Singer's Superman film for Warner Bros. Pictures. Brandon Routh is playing Superman. Saint, who starred in the Alfred Hitchcock classic "North by Northwest," co-stars in Wayne Wang's "Because of Winn-Dixie," to be released by 20th Century Fox on Feb. 18, and will also appear in Wim Wenders' "Don't Come Knocking," to be released by Sony Pictures Classics in the fall.. She is repped by ICM and Jeff Sanderson.