Star Trek 4: The Voyage Home Trailer 1986 Director: Leonard Nimoy Starring: DeForest Kelley, George Takei, James Doohan, Leonard Nimoy, Walter Koenig, William Shatner Official Content From Paramount Home Entertainment The crew of the Starship Enterprise travels back in time to 20th-century San Francisco, where two humpback whales hold the key to Earth's future survival. Funniest installment of the series! Movie, Star Trek 4: The Voyage Home Movie,Star Trek 4: The Voyage Home Trailer,Star Trek 4: The Voyage Home 1986, Leonard Nimoy,DeForest Kelley, George Takei, James Doohan, Leonard Nimoy, Walter Koenig, William Shatner