Matt is nominated for best actor for his role in The Martian, which racked up an additional six nominations.
Keep reading for more of Matt's night, and then see what everyone else is wearing.
He then directed, co-wrote, and starred in the crime drama The Town (2010).
For the political thriller Argo (2012), which he directed and starred in, Affleck won the Golden Globe and BAFTA Award for Best Director, and the Golden Globe, BAFTA, and Academy Award for Best Picture.
Ben Affleck did not appear to be in the mood to party Friday night, following the publication of a bombshell interview by Jennifer Garner, although an old friend seemed to cheer him up.