“Magic in the Moonlight” is cute and lighthearted, but overall dissatisfying. My biggest problem has to do with the characters’ inconsistent psychology and the over-simplistic storyline. The movie feels like a collection of interesting short stories rather than a single coherent piece. But if you have enjoyed Colin Firth’s Darcy in Pride and Prejudice, the movie presents an even sharper tongued and wittier version. And the south of France is beautiful and dreamlike.