Amazon's $10 million bet on Manchester by the Sea has paid off with a few Oscar wins. Casey Affleck won the Academy Award for Best Actor, while writer/director Kenneth Lonergan picked up … The script for “Manchester by the Sea” was recognized as Outstanding Original Screenplay at the 2017 Academy Awards tonight, accepted by Kenneth Lonergan. Casey Affleck will no longer be presenting the Best Actress Award at the Oscars. According to Deadline , The Manchester by the Sea actor will also not be attending the ceremony. Manchester by the Sea star Casey Affleck took home the Oscar for Best Actor at the 89th Academy Awards Sunday, February, 26. He was first nominated for an Oscar in 2008 for his lead role in “The Assassination of Jesse James by the Coward Robert Ford.” While Ben Affleck has opted for big movies like “Batman v.