The Great Riviera Bank Robbery, also known as Dirty Money and Sewers of Gold, is a 1979 British heist film written and directed by Francis Megahy and starring Ian McShane, Warren Clarke, Stephen Greif and Christopher Malcolm.

Needing to raise cash to buy weapons, Bert, an ex-paratrooper known as 'The Brain', devises a plan to dig their way into a bank vault from below.

After several nights spent digging through a wall in a sewer, they break their way into the safe deposit boxes, and try to make their getaway without being caught.

They delay pursuit by welding the vault shut so that the crime is not discovered immediately as the bank assumes it is a faulty door, which will not open.

A French film based on the same events, Les Égouts du paradis, directed by Jose Giovanni, was released the same year.