* Belle de Jour--Luis Bunuel in high gear, with Catherine Deneuve. At the WEST END, North Station (523-4050).

* Birth of a Nation--Griffith in sheets, a classic. At 2 DIVINITY AVE. tonight only, 7:30 p.m.

* Le Bonheur--A concise, smartly paced little picture in grand color, about a carpenter's ups and downs. Agnes Varda, who directed it, may well be the best woman moviemaker working. At the HARVARD SQUARE (864-4580).

* The Charge of the Light Brigade -- A movie which argues that mid-Victorian England was a pretty inhuman place, revealing that quality most clearly in its incredibly stupid wars. Not as exciting as the book (Cecil Woodham-Smith's The Reason Why), but for those who like their wars with lots of gory realism and facile satire, may make enjoyable viewing. At the CHERI 3, Dalton St. in Prudential Center (536-2870).

* Color Me Blood Red--Sounds good. At the CENTER, Washington St. near Stuart (426-0889).

* A Day at the Races--Second rank Marx Bros., not to be scoffed at. At the SYMPHONY, 262 Huntington Ave. (262-8837).

* The Endless Summer--The footage is routine, but the narration alternates between the wonderfully ludicrous and the ludicrously wonderful. At the SYMPHONY 1, 262 Huntington Ave. (262-8837).

* Elvira Madigan--For such a beautiful film, pretty ugly. At the SYMPHONY 1, 262 Huntington Ave. (262-8837).

* Duffy--Hoo boy, a clinker. At the CHARLES, 195 Cambridge (227-2832).

* Finian's Rainbow -- A heavyhanded, poorly acted film version of the musical, with nothing but the splendid score and the magnificent Fred Astaire to recommend it. The director, Francis Fred Coppola, has a bad habit of chopping people's hands and feet off; stars Petula Clark and Tommy Steele ought to act their age. At the SAXON, Tremont & Stuart (542-4600).

* Funny Girl--If you like Barbra Streisand, there is no getting round the fact that this movie works. The score, the screenplay, and even Omar Sharif are fine. The photography, on the other hand, is unfortunate, as is the editing. At the CHERI 2, Dalton St. in Prudential Center (536-2870).

* The Graduate--Mike Nichols' second movie, occasionally funny but too big for its britches. At the PARIS, 841 Boylston (267-8181).

* The Heart is a Lonely Hunter--Very weighty stuff, with the sensitive Alan Arkin as a sensitive young man who happens to be blind. At the ASTOR, Tremont St. near Boylston (542-5030).

* I Love You, Alice B. Toklas--A cheap celluloid account of the swinging sixties, atrociously filmed, with Peter Sellers as a representative youth. At the BEACON HILL, Tremont between Beacon St. & Govt. Center (227-6676).

* The Legend of Lylah Claire--Either awful or great, depending on how you feel. In either case, worth seeing. At the PARAMOUNT, Washington Street across from Raymond's (482-4820).