The Whole Truth is a 1958 British-American thriller film directed by John Guillermin and starring Stewart Granger, George Sanders, Donna Reed, Gianna Maria Canale and Peter Dyneley.

While making a film on the French Riviera, the producer, Max Poulton, has been having an affair with his star, Gina Bertini.

[5] During shooting, Romulus announced that they had offered Stewart Granger a six-picture contract worth $1.5 million;[6] but he made no more films for that company.

Teddy Darvas, sound editor, recalled that Granger "behaved exceedingly badly to Jackie Clayton on that film" by demanding large amounts of money to do ADR.

In striving to make the twists and turns of the plot clear, the director loses control over his players, with the result that the performances are never more than adequate.

"[8] Kine Weekly wrote: "Stewart Granger plays the tycoon-cum-playboy with easy assurance as Max, Donna Reed is a charming, unaffected Carol, Gianna Maria Canale scores in contrasts as the volatile, man-crazy Gina, and George Sanders is in his element as the vindictive, mentally unbalanced Carliss.

"[10] Leslie Halliwell said: "A filmed play, but quite a solidly carpentered murder thriller with a couple of neat twists.