Theatrical producer and actor who joined the MGM writing staff in 1933 and began directing his own films in the mid-1940s. Seaton won Best Screenplay Oscars for "Miracle on 34th Street" (1947) and "The Country Girl" (1955) and is also known for the taut spy thriller, "The Counterfeit Traitor" (1962), and for 1969's opening installment of the "Airport" movies.