Six Bridges to Cross or 6 Bridges to Cross is a 1955 American crime caper film directed by Joseph Pevney of Universal-International. The film starred Tony Curtis, George Nader, Julie Adams, Jay C. Flippen and Sal Mineo on his screen debut. Six Bridges to Cross is based upon the famous 1950 Great Brink's Robbery of Boston, Massachusetts in which the thieves made off with roughly $2.5 million.