One of the greatest British comedies of the 1930s and still superbly entertaining. Hay, Moffatt and Marriott produce a first-class comedy trio, bungling their way through a non-stop adventure than involves a haunted windmill, disappearing trains and chasing gunrunners. The final, frantic dash to Belfast is a great climax to the film, despite obvious camera tricks and effects. Correct accents help the authenticity of the Irish location, although it was filmed in southern England.