Roger Donaldson said one of the most difficult days of filming was when he filmed the brothel scene. The scene called for the women to be walking around wearing only garters. However, Donaldson said that when he went to film the scene he discovered that most of the women shaved their genitals, which would have been anachronistic for 1971. So the actresses had to wear pubic wigs called "merkins." This caused a problem because the merkins were hard to secure in place and kept slipping, causing Donaldson much aggravation.
Aldwych station was chosen to film the underground scenes because the true Tottenham Court Road station had been modified extensively in the early 1980s. Only Edgware Road still has any resemblance to its original look.
Was originally set up at Elie Samaha's now defunct Franchise Pictures. "Sea of Love" director Harold Becker was attached to direct. Statham was already signed on to star and stayed with the property through turnaround, before the screenplay found its home at Ominlab Media.
The trivia item below may give away important plot points.
In its edition of February 16, 2008 The Daily Mail newspaper reported "The four men caught, charged and convicted of the raid went to jail without ever having their names mentioned in the press, and to this day their identities and the circumstances of their capture remain secret. Even the lengths of their sentences are still shrouded in mystery."