[7] It’s surprising Errol Flynn didn’t make more screwball comedies, because he’s completely at home in this ‘who’s duping who’ comedy, outrunning the guard dogs, shaking hands with people in side-by-side moving cars, and carrying on romantic telephone conversations with two women simultaneously. In Four’s a Crowd, he’s teamed with his regular leading lady Olivia de Havilland, as well as Rosalind Russell (in a newspaper …