Jennifer Aniston and Justin Theroux made their most public appearance as a couple yet when they lit up the red carpet at the 25th American Cinematheque Awards Honoring Robert Downey Jr. Friday night.

The couple was arm-in-arm as they posed up for photographers, and joked with honoree Downey at the Beverly Hilton hotel.

PHOTOS: Jennifer Aniston And Justin Theroux Hit Up The Red Carpet At American Cinematheque Awards

Jennifer was stylish in black, which definitely was the fashion color of the night.

Also there honoring the very popular Downey were his Sherlock Holmes director Guy Ritchie, close friend Mel Gibson, Jodie Foster, Jack Black, Michael Douglas and Emmanuelle Chriqui.

Aniston and Theroux will have their own red carpet when their movie Wanderlust has its premiere in February.