Cameron Diaz is getting serious after the outrageous comedies "There's Something About Mary" and the upcoming "Very Bad Things." She is set to sign for the drama "Invisible Circus." In her supporting role, Diaz will appear in flashbacks as a woman who commits suicide. The lead characters (who haven't yet been cast) are the boyfriend she leaves behind and her teenage sister who falls in love with him.

Jason Alexander is upgrading from the neurotic misbehavior of "Seinfeld" to flat-out evilness. He's taking the role of Boris Badenov in the upcoming version of "Rocky and Bullwinkle." While the titular animals will be created by CGI, the rest of the film is live action. The role of Badenov's sultry sidekick, Natasha Fatale, has not yet been cast. Why not requite Alexander's "Seinfeld" crush, Marisa Tomei?

Greg Kinnear will join Morgan Freeman, Renee Zellweger, and Chris Rock in Neil LaBute's new black comedy, "Nurse Betty." Kinnear plays a soap star pursued by a Midwestern fan (Zellweger), who tracks him down from her Kansas home. Unfortunately, she unwittingly brings the mobsters who are pursuing her (talk about slow times for the Mob). If the premise seems on the kooky side for the provocative LaBute ("Your Friends and Neighbors"), it may be because it's not his original script. However, he is rewriting the screenplay, so this might end up as the most controversial fluffy farce ever.

Faye Dunaway, who starred in 1968's "The Thomas Crown Affair," has been cast in its upcoming remake. In the original she played a detective who falls in love with the millionaire-turned-art thief (Steve McQueen) she's pursuing. Now Rene Russo and Pierce Brosnan have those roles, leaving Dunaway to play the dapper crook's psychiatrist.

Carmen Electra has been hired to add some sex appeal to the ailing WB drama "Hyperion Bay." She'll play a computer heiress who becomes the professional competition and love interest for lead actor Mark-Paul Gosselaar. No doubt the WB is copying "Melrose Place," which drafted Heather Locklear to arouse that show's weak early ratings. And we thought Electra and Locklear had only rock stars in common.