Ethan Hawke is set to star in Richard Linklater’s ‘Blue Moon’. The 53-year-old actor will collaborate with the director for the ninth time on the film that will begin production in Dublin this summer. Other cast members to have signed up for the flick include Margaret Qualley, Andrew Scott and Bobby Cannavale. ‘Blue Moon’ has been written by Robert Kaplow and tells the story of the final days of Lorenz Hart – one half of the successful Rodgers and Hart songwriting duo – in 1943. The movie is primarily set on the opening night of ‘Oklahoma!’ which marked Richard Rodgers’s first collaboration wi…