This year, Richard Linklater helmed two biographical films about extraordinary artists. After “Nouvelle Vague,” which examined the making of Jean-Luc Godard’s “Breathless” (1960), there’s “Blue Moon,” which revolves around the camaraderie between Broadway icons Lorenz Hart (Ethan Hawke) and Richard Rodgers (Andrew Scott). Mashable’s Head of Video Mark Stetson sat down with Hawke, Scott, and Bobby Cannavale (portraying an all-knowing bartender Bobbie) to explore their roles and insights on the Hart-Rodgers dynamic.