Song of the Builder

A mystery musical short - gorgeous footage of steelworkers with a lively calypso soundtrack

Haunting, sparky and beguiling, this short film is an enigma. It's an early sound film from 1936, featuring gorgeous images of steelworkers and described as a "musical short" in the records of the BFI National Archive. The film has a lively calypso soundtrack, so it may not be British - though it's also been suggested that it's similar to a Noel Coward song. Can you identify it?