Anything to Declare? is a 1938 British crime thriller film directed by Redd Davis and starring John Loder, Noel Madison and Belle Chrystall. It was written by Hayter Preston and shot at Nettlefold Studios in Walton-on-Thames.

Plot

A new gas formula that can be used as a deadly weapon invented by a pioneering British scientist draws the interest of a shadowy peace movement, which masks a more sinister intent.