Star Trek IV: The Voyage Home is pure, joyful cinema

“Nimoy loved the supporting players, and his film bestows each of them with a Hall of Fame moment. Scotty: “A keyboard. How quaint.” Chekov: “Nuclear wessels.” Uhura: “But where is Alameda?” McCoy, undercover as a surgeon, asks an old lady in a hospital what’s wrong with her. Kidney dialysis, she says. “Dialysis!” McCoy sputters — an actual honest-to-god sputter, DeForest Kelley’s voice like an old engine cackling. “What is this, the Dark Ages?””