O Lucky Man. Directed by Lindsay Anderson, and starring Malcolm McDowell who is credited with coming up with the gem idea for this movie. Bet he got it making Clockwork Orange. Anderson, who claims he hasn't seen a movie in five years, certainly would never know the difference. And his movie barely acknowledges one. A pretentious effort at a mod Pilgrim's Progress with a moral any child could draw. An empty, empty movie. Cinema 57, 10-10, every three hours.

Harold and Maude. About a romance between an adolescent boy and a spinster ready to kick off. It proselytizes for the "free" life; the message is as old and faded as a hippie's blue jeans. Abbey II, 8, 10.

Klute. A thriller about a call girl beseiged by a crazy breather. Starring Jane Fonda and Donald Sutherland. Fonda has never been tougher, and she is tough. Watch her hands talk when she visits her psychoanalyst--it is eloquence in action. Garden Cinema, 8.

King of Hearts. The only reason for writing this clip is to tell you--if you are still debating whether or not you want to find out what all the fuss in Central Square has been about every Saturday night for who knows how long--not to bother. Central Cinema I. 6:30, 9:45.

Strangers on a Train. One of Hitchcock's best. About a lunatic who makes murder deals, favor for favor, friend for friend. Brattle Theatre. 6, 9:50.

Arsenic and Old Lace. Frank Capra directs. Starring Gregory Peck, Peter Lorry and someone who looks like Boris Karloff. About a family of crazies--the aunts kill lonely old men for charity, the convict escapee nephew kills for profit, the son thinks he is Teddy Roosevelt. And they all run around in a chaotic mess of slamming doors and confused criminality. Brattle Theatre. 7:50.

The Day of the Jackal. Fred Zinneman directs a thriller about the attempted assassination of de Gaulle by a hireling of the OAS (with Edward Fox looking like the Englishman's version of Robert Redford). The movie teases you, catapulting from one possible peak finish to another, and ends like a snowball that has suddenly mushroomed into an abominable snowman. Pi Alley. 2:45, 5:15, 7:45, 10:15.

Paper Moon. Lots of tears wrung out of the story directed by Peter Bogdanovitch about the chumming up of a team as old and as wet as the thirties. Ryan O'Neal plays a con man who makes a fast-talking living by selling just-widowed, bereaved old ladies Bibles that he has personalized in gold on the covers after gleaning the victims' names out of the local want ads. His real-life daughter (Tatum O'Neal) is an 11-year-old tomboy, and a leech so tough that she pulls a quicker con over her big-mouthed but slow-witted Daddy than he'd be willing to admit was possible in real life. Cinema 57. 10 a.m. - 10 p.m. every two hours.

Fantasia. A Walt Disney animated extravaganza that has to be tripped through to be borne at all. Cinema Kenmore Square. 2, 7:15, 9:30.

State of Siege. Costa-Gavras's latest political drama (following Z and The Confession) written by Franco Solinas who scripted The Battle of Algiers. Yves Montand has the sort of impeccably cool, unimpeachable face which is perfect for the part he plays. His role is recognizably based on the life and death of assassinated AID official Dan Mitrione, who was trained in the U.S. to operate in close undercover conjunction with the repressive policy in Brazil and Uruguay. Montand is perfect because this dream of a family man, whose actions are propelled by a pure form of bourgeois liberalism, is so unconscious an oppressor. Charles West. 2:30, 5, 7:45, 10.

Ten from Your Show of Shows. A sampling of the 160 90 minute weekly shows directed and produced by Max Liebman from 1950 to 1954, starring Sid Caesar and Imogene Coca, with Carl Reiner and Howard Morris. A few classic comic skits from one of the greatest clowns in the business.