Un peu de soleil dans l'eau froide, internationally released as A Few Hours of Sunlight and A Little Sun in Cold Water, is a 1971 French film directed Jacques Deray adapted from the novel of Françoise Sagan. The title quotes the poet Paul Éluard.
According to Cahiers du cinéma, the film is one of the most personal works of Deray. Le Nouvel Observateur referred to it as "un petit film démodé comme le petit roman de Sagan" (i.e., "a little film which is old-fashioned in the same way the little novel by Sagan is"). Time Out was very critical, calling it "fatuous" and saying "Porel gives one of the most boring, suburban, asexual performances imaginable". DVD Talk called it "dated and dull".
It is based on a 1969 book by Françoise Sagan. BSCNews calls it "a superb novel", praising Sagan's "simple and poetic" style.