Star Trek IV, Voyage Home is a Solar System based science fiction which was released in 1986 and is directed by Leonard Nimoy.
When the Enterprise Crew return home in a Klingon Bird of Prey from Vulcan, they discover the planet is under threat from an unknown alien being. The sounds coming from the object are reminiscent of a Humpback whale that is currently extinct. The only way to save the world is to travel back to 1980's San Francisco and bring it back to the future. The whale they are after is in an animal conservation centre.