Continuity mistake: When Clouseau and Cato are trying to get into "Le Club Foot" they go crashing through the window of a bakery. A little later on, they go through the same hole again, yet this time there is a large undamaged wedding cake sitting there for Cato to land in. The cake couldn't have survived the first accident.
Continuity mistake: When Dreyfus and the commissioner are discussing Clouseau's death, Drefus is holding open a pink file and there is a white folder on the desk . The shot switches to Drefus standing up; the pink file he is holding is now closed and another pink file is on top of the white folder on the desk.