Number five in the long running comedy series and the best of the 70s/80s sequels. It's the one where Dreyfuss (Herbert Lom) escapes from a psychiatric hospital and commands the combined forces of international crime and espionage to murder Clouseau (Peter Sellers)...
It's busting with brilliant visual gags from the pre-credit sequence onwards, surely unequalled since the early films of Laurel and Hardy. Some are old favourites, like the anticipated assault from Kato (Burt Kwouk) but there are many new wild slapstick set pieces.
My personal favourite is Dreyfuss blowing up Clouseau's rooms while the immortal detective hovers outside, held aloft by a helium balloon... This is all crazy, cartoonish stuff, inspired by the serendipitous alliance between Sellers and writer/director Blake Edwards.
Credit is probably also due to Sellers' stunt double... The star's screen combo with Lom is sublime. Leslie-Anne Down brings considerable glamour to the later scenes. The only real downer is Henry Mancini's legendary theme music is only heard over the credits.