It's rare to see an actor shift from playing a tough criminal to a cheerful singer, yet James Cagney manages it effortlessly in this film. Playing the character of “Thaddeus McGillicuddy,” he’s a bandleader in New York who receives a Hollywood contract. Following a disastrous fight scene, he abandons his plans and takes a trip with his fiancée “Rita” (Evelyn Daw). However, cameras captured his chaotic studio rampage,…