MR. TOPAZE aka I Like Money (1961):

Honest French teacher Auguste Topaze (Peter Sellers) is fired after refusing to alter the bad grades of a baroness' grandson.

Sensing an opportunity, actress Suzy (Nadia Gray) convinces her lover, corrupt city council member Castel Benac (Herbert Lom), to hire Topaze as a managing director for one of his businesses, arguing that Topaze's well-known honesty will protect the company from suspicion. From Teacher To Tycoon In Ten Light-Fingered Lessons!

From Teacher To Tycoon In Ten Light-Fingered Lessons!                

CAST:

Peter Sellers ... Auguste Topaze
Nadia Gray ... Suzy
Herbert Lom ... Castel Benac
Leo McKern ... Muche
Martita Hunt ... Baroness
Michael Gough ... Tamise
Billie Whitelaw ... Ernestine
Joan Sims ... Colette
John Le Mesurier ... Blackmailer

Director: Peter Sellers