The United States Destroyer used in the film was the USS Alfred A. Cunningham (DD-752) which was commissioned in November 23, 1944. It served in World War II and the Korean War before being decommissioned in 1971. It was sunk as a target in 1979.
This was the final animated film work released by Warner Brothers before the animation studio was shut down. Warners would continue to release theatrical shorts produced by Depatie-Freleng Enterprises until 1969.
The ship launch shown at the start of the movie is stock footage of the SS Fred Morris going down the slipway on 2 November 1940 (in New Jesey, not Brooklyn); the ship was later acquired by the US Navy to become USS Otus and received one battle star for service in World War II.