Perfect Friday (1970)

Synopsis
A trio of aspiring crooks plan to steal a million dollars in this crime comedy. Lord Nicholas (David Warner) and his Swiss wife Britt (Ursula Andress) are the jet-set couple who have spent all their money and seek a loan from the bank. She asks Graham (Stanley Baker) for a loan, but the mid-level manager has plans of his own to pad his retirement account by means of larceny. Graham approaches both Nicholas and Britt to help him in his plan. Britt sleeps with both men, willing to take off to Rio with the first one who gets his hands on the money. Nicholas and Graham both are under the assumption they are the masterminds of the plot that is highlighted by amusing twists. ~ Dan Pavlides, All Movie Guide