Jennifer Aniston has a lot to smile about these days. The new Mrs. Theroux showed off her post-honeymoon glow at the red carpet premiere of her new film "She's Funny That Way," flashing her smile and her new wedding ring for the cameras, Entertainment Tonight reported.

Aniston looked sleek and slim at the premiere on Wednesday night in a black off-the-shoulder jumpsuit by Roland Mouret, according to Us Weekly. She kept the outfit simple with a few statement accessories, wearing a bold black and gold wrist cuff and a gold double-finger ring on her right hand. The three thin gold bangles on her left wrist and her pale pink natural manicure perfectly accented her gorgeous new gold diamond wedding band. The Jennifer Meyer-designed ring stood out against the small black clutch that she held in her left hand.

The "Friends" alum tied the knot with actor Justin Theroux in a secret private ceremony at the couple's $21 million Bel Air mansion on August 5, as previously reported by HNGN. The surprise nuptials came after a three-year-long engagement.

It was her first public appearance since the ceremony and Aniston looked positively radiant as she glowed with post-wedding bliss after returning from her honeymoon in Bora Bora. Her hubby missed the premiere of the Wes Anderson-directed "She's Funny That Way," but Aniston was all smiles as she celebrated with her girlfriends.

"It was a total girls' night," a guest told Us Weekly. "She looked amazing, really fit and tan and was seriously smiling so much! And even from a distance you could not miss the very thick wedding band sparkling on her ring finger."

See Aniston's full outfit and a close up of her wedding ring bling below.