Saint Jack is a 1979 film directed by Peter Bogdanovich based on the 1973 novel Saint Jack. Ben Gazzara stars as Flowers in the film. The film also features Denholm Elliott and George Lazenby.
Saint Jack was shot entirely on location in various places in Singapore in May and June 1978. Places featured in the film include the former Empress Place Hawker Centre (now demolished) and Bugis Street. The local authorities knew about the book, hence the foreign production crew did not tell them that they were adapting it, fearing that they would not be permitted to shoot the film. Instead, they created a fake synopsis for a film called Jack of Hearts, (what the director called "a cross between Love Is a Many Splendored Thing and Pal Joey") and most of the Singaporeans involved in the production believed this was what they were making.