Perfect Friday

Perfect Friday is a British bankheist film released in 1970, directed by Peter Hall. It stars Ursula Andress as Lady Britt Dorset, Stanley Baker as Mr Graham, David Warner as Lord Nicholas Dorset and T. P. McKenna as Smith.

He meets Lady Britt Dorset, a spend thrift aristocrat. They devise a plan, along with her husband, Lord Nicholas Dorset, to steal 300,000 from the bank.Their plan is to be enacted on the day that the manager plays golf. It involves for Britt to seduce the main security guard and for Lord Dorset, posing as a bank inspector, to substitute counterfeit money. ........

Source: Wikipedia