Originally named "The Reef".
The last theatrically released film of Warner Bros. to be rated G by the MPAA until Sesame Street 15 years later.
This was R. Lee Ermey's only fully cgi film outside Disney/Pixar's Toy Story franchise prior to his death in April 2018, as well as Jack the Marlin being his only cgi voice over role other than Sarge from the aforementioned franchise.
Warner Bros second theatrically released computer-animated film after The Polar Express (2004), as well as the latest one to be rated G by the MPAA.