Brad Pitt & Ruth Negga Step Out for 'Ad Astra' Premiere in L.A.

Brad Pitt suits up for the premiere of his new movie Ad Astra on Wednesday (September 18) at The Cinerama Dome in Los Angeles.

The 55-year-old actor kept things cool in a black suit as he was joined at the premiere by co-stars Ruth Negga, Liv Tyler, Tommy Lee Jones, and Donald Sutherland.

PHOTOS: Check out the latest pics of Brad Pitt

Supporting Liv at the premiere was her dad Steven Tyler and his girlfriend Aimee Preston along with her pregnant sister Chelsea Tyler.

During a recent interview, Brad revealed that he will not be campaigning for any Oscar nominations this year. Find out why here.

Ad Astra hits theaters on Friday, September 20 – check out the trailer here!

FYI: Ruth is wearing a Gucci outfit and rings by Gucci and David Webb.

20+ pictures inside of the stars at the premiere…