Harry Fowler later married fellow actress Joan Dowling, but sadly she committed suicide in 1954, aged just 26.
The bus which "Joe Kirby" jumps onto after buying a copy of The Trump is registration JJ4377. The same bus is seen twice later in the film, passing outside the publishers of The Trump. Obviously hired from London Transport for the exterior shots.
The first film of Dandy Nichols.
The plot derives some inspiration from the story, 'Emil and the Detectives' by 'Erich Kastner''. Kastner's story has been filmed several times.