This is a seriously good comedy. Michael Caine is delightfully saucy as the title character. He ought to seem a cad, and at times he is, but he takes his lumps too, and takes them in stride. The supporting cast is very effective, with especially excellent performances by Jane Asher, Shelley Winters and Millicent Martin. The camera work is also notable, and London serves as an effective backdrop. Definitely worth a look, and a reminder Michael Caine was as good then as he is now.