Your pop culture cheat sheet

Here's what's going on in the world of entertainment today:

• In response to Wednesday's announcement that Ellen DeGeneres would be the newest judge on "American Idol," Paula Abdul tweeted, "I think Ellen will b a gr8 judge on Idol. She is wildly funny, talented and I wish her the best of luck!"

• Maura Tierney ("ER," "NewsRadio") has had to drop out of the cast of NBC's upcoming series "Parenthood" due to conflicts with her breast cancer treatments, according to The Hollywood Reporter. The beginning of production had been postponed to November when she first announced her diagnosis. Expressing regret that Tierney would not be able to take part in the show, her spokeswoman said, "Ms. Tierney and her doctors remain confident that the outcome of her treatments will be positive."

• Will Smith, Charlize Theron and Jason Bateman are all on board for the planned sequel to last year's hit "Hancock," according to Variety.

• Speaking of superhero movies, Variety reports that Rainn Wilson, Ellen Page and Liv Tyler will star in a spoof of the genre called "Super." Wilson will play a wannabe-costumed hero who lacks superpowers.

• "Big Lebowski" fans, rejoice: Jeff Bridges may be back with the Coen brothers for their remake of the John Wayne classic "True Grit," Variety reports. Bridges is currently in discussions to play Wayne's character.

• In theatres today: "Tyler Perry's I Can Do Bad All By Myself," "Whiteout" starring Kate Beckinsale, and the latest horror remake, "Sorority Row."