More Whiskey for Callaghan (French: Plus de whisky pour Callaghan) is a 1955 French thriller film directed by Willy Rozier and starring Tony Wright, Magali Vendeuil and Robert Berri. It is an adaptation of the 1941 novel It Couldn't Matter Less by British writer Peter Cheyney featuring the private detective Slim Callaghan. It was the second film featuring English actor Wright as Callaghan following Your Turn, Callaghan.
Slim Callaghan investigates the theft of documents from a British laboratory. This leads him to the Côte dâÂÂAzurwhere he decides to infiltrate a network of aristocratic spies.