From the entertainment world, Sept. 25

The CW’s new series “90210” has been picked up for a full season. It will produce 22 episodes total.

Oprah Winfrey will guest on “30 Rock” in November.

Jude Law is in negotiations with Warner Brothers to play Det. Sherlock Holmes sidekick Watson in the new Guy Ritchie movie. Robert Downey, Jr. is to play Holmes.

Lindsay Lohan will be a guest judge when “Project Runway” returns for its new season in 2009 on Lifetime.

Disney has moved the opening of “Hannah Montana: The Movie” to April 10. It was previously scheduled for May 1.

CBS is planning an 11th installment of “Big Brother” for next summer.

Bruce Willis will direct his first film, the indie drama “Three Stories About Joan,” with Camilla Belle and Kieran Culkin starring.

Asian movie star and director Stephen Chow will direct and co-star in “The Green Hornet.”