Anyone who wasn't lost, in one sense or another, in Part II will have plenty more opportunity here: plenty more of that formula of obviousness and overstatement blended with in-jokes and incoherence. This time, science fiction collides with the Western (as our aging teenager travels to 1885 in his Nikes), and neither genre profits much from the encounter. The Western perhaps comes out of it in better shape, what with the chase of the runaway buggy, and the genteel schoolmarm, and the showdown on Main Street, and the train holdup (no, not a train holdup: "It's a science experiment!"). But the sci-fi part, pretty well confined to one time zone and forced to make do without such modern conveniences as gasoline, never gets as out of control as Part II. And the tributes to Jules Verne, whose lifeline did indeed run concurrently with the Wild West, should be accepted with good grace. Michael J. Fox, Christopher Lloyd, Mary Steenburgen; directed by Robert Zemeckis. (1990) — Duncan Shepherd