It's Not Cricket is a 1949 British comedy film directed by Alfred Roome and starring Basil Radford, Naunton Wayne, Susan Shaw and Maurice Denham.
Major Bright and Captain Early are intelligence officers in the British army of occupation in post-World War 2 Germany.
Uncertain what to do in civvy street, they decide to use the "skills" they learned in the army and set up a private detective agency, "Bright and Early".
What I’d do now is cut out all the terrible, boring romance stuff with Susan Shaw; there was a lot of other chat that should have gone too, but other than that, it’s not too bad... We managed to doll the sets and clothes up quite nicely, so that it looked quite expensive.
[3] The Monthly Film Bulletin wrote: "Basil Radford and Naunton Wayne exploit to the full every humorous possibility to be found in this somewhat thin story, which degenerates into pure slapstick in the closing sequences.