Complex sentence: The same year MGM produced "The Cat Concerto", Warner Bros. released a very similar Bugs Bunny cartoon "Rhapsody Rabbit", directed by I. Freleng, "Rhapsody Rabbit", with the hare opposite an unnamed mouse.
Split into simpler sentences: The same year MGM produced "The Cat Concerto", Warner Bros. released a nearly identical cartoon entitled "Rhapsody Rabbit". Directed by Friz Freleng, "Rhapsody Rabbit" featured Bugs Bunny opposite an unnamed mouse.