More than year after 2006's The Break-Up and six months after her much-ballyhooed on-air kiss with Courteney Cox on the FX series Dirt, Jennifer Aniston is at work filming the ensemble comedy He's Just Not That Into You with Ben Affleck.

"I'm ba-ack!" Aniston tells the November issue of Harper's Bazaar, which arrives on stands Oct. 23.

Aniston, 38, the top-selling celebrity face on newsstands according to Forbes, seems a fitting cover model for the 140th anniversary issue of Harper's, which celebrates both fashion and pop culture.

And the actress shows no sign of fading from the scene. After He's Just Not That Into You, she will work on the romantic comedy Management with Steve Zahn and the drama Traveling with Aaron Eckhart. All three are due in 2008.