A Touch of Larceny (1960)

James Mason is the caddish Royal Naval officer "Easton" killing time in his unchallenging job from day to day until he meets "Virginia" (Vera Miles) and suddenly he has to up his game - and his income. The former is easy enough, but the latter is a problem until he devises a cunning wheeze to appear to defect to the Soviets only to return, all innocent, and to sue the defaming newspapers. One additional fly in his ointment - the girl is already engaged to "Sir Charles Holland" (George Sanders). "Easton" goes to great and public lengths to implement his plan, but on his return he realises that there is far more going on than he anticipated - and we are unsure whom is the cat and whom is the mouse... Mason is great in this, he has the role of the amiable rogue down to a T, but Miles is less engaging and Sanders features a bit too sparingly to allow his character to get up much of an head of steam. It is amusing at times, though, and Guy Hamilton and a strong script keep the pace building nicely to an ending that is not without quirk or two.