I concur! I find it quite odd that not a more proper sequel of Splash
was ever produced by the studios. What the fuck are they hiding?http://en.wikipedia.org/wiki/Splash_(film)#Spinoffs
A sequel, Splash, Too (directed by Greg Antonacci), appeared in 1988 as a television film (contradicting the first movie's finale revelation that if Allen goes to live in the sea, he can never return). Only one member of the original cast, Dody Goodman, the Bauers' slightly deranged assistant Mrs. Stimler, reprises her role.
A novelization of the film, written by Ian Marter (under the pen name Ian Don), was published by Target Books in the United Kingdom.