Star Trek IV: The Voyage Home
Directed by Leonard Nimoy. With William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan. To save Earth from an alien probe, Admiral James T. Kirk and his fugitive crew go back in time to San Francisco in 1986 to retrieve the only beings who can communicate with it: humpback whales.
I’ve been collecting some old fanzines and various publications from the time that this movie came out and I’m tickled to see so many people absolutely knocking the story as being derivative and silly, which I would say is the entire point.