Here's what's happening today in pop culture:
• Media mogul Rupert Murdoch filed for divorce from his third wife, movie producer Wendi Deng Murdoch, after 14 years of marriage. [The Hollywood Reporter]
• Arnold Schwarzenegger says he will star in the fifth "Terminator" movie. So now we must contemplate a future in which robots get old and craggy. [Vulture]
• The next Muppet movie has a new title, "Muppets Most Wanted," to reflect its crime-caper plot. (Didn't they do that with "The Great Muppet Caper"?) [Entertainment Weekly]