The "Pink Panther" of the title is a diamond supposedly containing a flaw which forms the image of a "leaping panther" which can be seen if held up to light in a certain way. This is explained in the beginning of the first film, and the camera zooms in on the diamond to reveal the blurry flaw, which focuses into the cartoon Panther (though not actually leaping) to start the opening credits sequence. (This is also done in Return. ) The plot of the first film is based on the theft of this diamond. The diamond reappears in several later films in the series, The Return of the Pink Panther, Trail of the Pink Panther, and Curse of the Pink Panther. It also appears in the revival of the Inspector Clouseau character in the much later Steve Martin films The Pink Panther (2006), and its sequel The Pink Panther 2 (2009). The name "the Pink Panther" became attached to Inspector Clouseau in much the same way that Frankenstein has been used in film titles to refer to Dr. Frankenstein's creation, or The Thin Man was used in a series of detective films.