Here's what's being talked about in pop culture:
• Four Democratic senators have written a protest letter to Hollywood claiming that the sight of celebrities using e-cigarettes at Sunday's Golden Globes ceremony sends the wrong message to children. [The Hollywood Reporter]
• Sam Worthington and Zoe Saldana will be back to work on the "Avatar" sequels. [Deadline]
• CW's "The Originals" is taking the bold, and possibly obnoxious, step of advertising on a rival show ABC Family's "Pretty Little Liars" urging its teen viewers to change the channel. So, of course, it's become a Twitter fight. [Entertainment Weekly]