What's a detective story without a chase scene? Bullitt, showing this weekend at Winthrop House, without any doubt earns a 9.5 (on a scale of ten) for its chase scene featuring Steve McQueen, careening cars and the incredibly steep hills of San Francisco. McQueen's portrayal of a lone-wolf cop battling both criminals and his superiors shouldn't be missed, and Robert Vaughn, of Man From U.N.C.L.E. fame, makes an unusual appearance as the Ambitious Young Pol.

There's more swashbuckling in The Dawn Patrol with Errol Flynn and David Niven, playing at Harkness Commons, but the action takes place in the skies over France, not on the streets of the City. Flynn and Niven maintain a collective stiff upper lip as they repeatedly tangle with the Boche. Plenty of dogfights...

Conspiracy buffs who haven't seen the Zapruder film of the Kennedy assassination have until next Wednesday to visit the Orson Welles, where it is showing along with Rush to Judgment, Emile De Antonio's film based on Mark Lane's attack on the Warren Commission report.

Escape is possible with Walt Disney's most creative film, Fantasia (barely edging out The Love Bug and Flubber for the honor), which starts tomorrow at Harvard Square. Made in 1940, Fantasia stretches the mind with its animation and soothes the ear with Stravinsky and Bach.