They obviously had a shoestring budget and it shows. The writing is second rate as is the acting and the directing. That it was filmed in the leafy lanes of southern England is obvious; the vehicles, uniforms, and weapons are all obvious inaccurate stage props. It has the feeling of a movie made by the Scunthorpe Amateur Dramatics Society who somehow got some money to make a film but they had to use Mrs Minge's back garden as a set and find whatever props they could from the basket back stage at the Town Hall theatre.