Pat Saperstein Deputy EditorStuart Cornfeld, who worked with Ben Stiller’s Red Hour Films to produce movies including “Tropic Thunder,” “Dodgeball” and “Zoolander,” has died of cancer.Several of his friends posted about his death on social media.At Red Hour, which he founded with Stiller in 1999, he also produced “Duplex” starring Stiller and Drew Barrymore, “Starsky & Hutch,” “Blades of Glory” and “The Ruins.” One of the last films he produced was “The Polka King,” starring Jack Black.Earlier