Loves of Ondine--Warhol. At the CINEMA KENMORE SQ. (262-3700) through Tuesday.
The Man from Rio--The incomparable Jean-Paul Belmondo becomes the first screen hero ever to kick a bad guy in the groin. If you like slapstick and involved plots, hop to it. At the SYMPHONY I, Huntington at Mass. Ave. (262-8837).
Negatives--A ponderous and pretentious excursion into illusion-reality land, starring three ugly people, one of whom was much better in "Marat-Sade" and featuring a soundtrack consisting almost entirely of ominous clicking, gratuitous screaming, and much too much crumpling of polyethelyne. This way madness lies. At the CHARLES CINEMA, 195 Cambridge St. (227-2832).
Never on Sunday--The movie version of "Illya Darling." At the BRATTLE (876-4226) starting Sunday.
Paper Lion--In which Alan Alda gives a moving performance as George Plympton. At the FRESH POND CINEMA in Fresh Pond (547-8800).
The Queen--Transvestism meets cinema verite. At the HARVARD SQ. (864-4580).
Romeo and Juliet--Although Franco Zeffirelli's teen-age treatment of Shakespeare's situation tragedy may be somewhat free-wheeling for all tastes, sentimentalists will eat up every second. Olivia Hussey's reading of Juliet proves a truly right interpretation of the part. At the ABBEY, 600 Commonwealth Ave. (262-1303).
Star--Despite wonderful music, ranging from Kurt Weill to Cole Porter, an aimless, fruitless movie. The theatrical history, however, is fun, and Julie Andrews and Daniel Massey are likewise as Gertrude Lawrence and Noel Coward. At the GARY, 131 Stuart (542-7040).
The Thomas Crown Affair--In which Norman Jewison, having tackled a variety of earth-shaking themes, takes a vacation. At the PARAMOUNT, Washington St., Boston (482-4820).
The Umbrellas of Cherbourg--The first of the new French musicals. At the HARVARD SQ. (864-4580).
2001--Stanley Kubrick's epic of human advancement, externally motivated. The special effects must be seen, and can best be seen from the first five rows. At the CINERAMA, Washington Street near Essex (482-4515).
West Side Story--Much, much worse than the show. Badly dubbed and drippily sung, but funny in places. At the SAVOY, 163 Tremont (536-2120).
Yellow Submarine--A good cartoon about the Beatles not to be confused either with The Road Runner or Joyce's Ulysses. The drawing leans overly on contemporary advertising art, but the 85 minutes are provocative and occasionally moving. At the BEACON HILL, Tremont between Beacon St. & ovt. Center (227-6676)