THE SCREEN

SCIENCE CENTER

The Last Picture Show, Friday and Saturday, 8 and 10 p.m., in Cone night. D the next.

SCIENCE CENTER

The Producers, Friday and Saturday, 2 and 10 p.m., B's, C's, D's, etc., the reverse of the above.

BRATTLE

Closely Watched Trains, 6:25, 9:30, Wr-Mysteries of the Organism, 8 p.m., through Sunday.

CENTRAL II

Shampoo, 6, 9:45, weekend at 2:15, The Last Detail, 8 p.m., weekend at 4:15, through Sunday.

HARVARD SQUARE

Happy Hooker, 1, 4:30, 8 p.m., Barbarella, 2:45, 6:15, 9:45, through Sunday.

ORSON WELLES I

Monty Python and the Holy Grall, 4, 5:35, 7:10, 8:45, 10:20.