This was the third in the "Pink Panther" series, which starred Sellers. Alan Arkin and director Bud Yorkin had attempted their version with INSPECTOR CLOUSEAU, but it couldn't compare to the comedy engendered by Sellers under Edwards's direction. This sequel took in more than $30 million
and earned every cent. The famous diamond named in the title has been stolen from the museum where it had been residing for the past several years. Blame is laid at the feet of retired jewel thief Plummer (doing the David Niven role established in THE PINK PANTHER), though he is innocent. Plummer
is married to Schell and is in danger of being arrested for a crime he didn't commit, ...