Here's what's happening today in pop culture:
• Katy Perry goes jungle queen in her video for "Roar." [The Huffington Post]
• Looks like the rift between Hollywood blog queen Nikki Finke and her boss, Jay Penske, is boiling over. [The Wall Street Journal]
• The Toronto International Film Festival kicked off with its first love-it-or-hate-it movie debate: The WikiLeaks drama "The Fifth Estate." [Entertainment Weekly]