Here's what's being talked about in pop culture:
• Director Steve James ("Hoop Dreams") and producer Martin Scorsese are launching a crowd-funding campaign to raise $150,000 to finish "Life Itself," his documentary about the life of movie critic Roger Ebert. [The Huffington Post]
• James McBride's "The Good Lord Bird" and George Packer's "The Unwinding: An Inner History of the New America" are among this year's National Book Award winners. [Vulture]
• Kermit has an evil doppelganger and Tina Fey is a mean Russian just two of the revelations of the "Muppets Most Wanted" trailer. [Entertainment Weekly]