I’ve tried repeatedly, but I still can’t grasp how Joan Collins found success in Hollywood. She possesses about as much acting ability as a head of lettuce, and even performing basic actions seems difficult for her here. Fortunately, there are other performers who elevate this unusual crime story, and they manage to create something somewhat distinctive. A former professor, ‘Wilkins,’ portrayed by Edward G. Robinson, has summoned the recently freed ‘Paul’ (Rod Steiger) to Monte Carlo. Their encounter by the sea quickly reveals a shared history and that neither of them have any money. ‘Wilkins’ proposes a risky scheme to change that situation, so with assistance from an odd assortment of individuals including 'Melanie' (Collins), 'Raymond' (Alexander Scourby), safe-cracker 'Dante' (Louis Antonizzi) and the nervous 'Poncho' (Eli Wallach), they intend to break into the Casino and take approximately $4 million. The scheme isn’t without potential problems—particularly for ‘Poncho,’ but with everyone needing funds, they launch a rather intricate assault on the establishment, hoping to do so without weapons or violence and by departing in an ambulance! Predictably, as is typical of films centered around robberies, it's not the planning that fails, but whether the execution and their subsequent getaway can occur without any losses. Robinson truly stands out; his portrayal of the elderly and disgraced scientist gains your sympathy—even though we never learn exactly what he did to earn such contempt. I felt he had a good rapport with Steiger, who subtly underplays his part, and Wallach, whose depiction of the constantly worried ‘Poncho’ is genuinely effective. The amusingly appropriate ending arises from an unexpected place, which I appreciated, and it's enhanced by its elegant black-and-white cinematography as the suspense builds and nerves fray.

Source on TMDB