This film is part of the Nick Broomfield Presents season at Regent Street Cinema. You can find the full details of the season here.
Chicago Reader review:
A triumphant 1974 return of Peter Sellers as the exquisitely inept Inspector Clouseau. The razor-sharp direction is by Blake Edwards, whose instinct for the amusing aspects of life's gruesome interludes makes this innocent looking comedy-mystery a study of survival-with-style in the face of almost certain disaster. With Christopher Plummer and Herbert Lom.
Here (and above) is the trailer.