Michael's wedding ring was clearly in place at the star-studded ceremony, where he was warmly greeted on the red carpet by Matt Damon and his wife Luciana.
In his acceptance speech, Michael paid a cheeky tribute to his Candelabra co-star. "Obviously there's one nominee in particular that I really have to thank. This was a two-hander, and Matt, you're only as good as your other hand," Michael said.
"So, I can't tell you… you were magnificent and the only reason I am standing here is because of you. So you really deserve half of this. Do you want the bottom or the top?"
Michael and Catherine, who were married in 2000, recently revealed they were taking a "temporary separation" and have not been seen together since the announcement. However, fans of the couple will be hoping that Michael's speech means a reconciliation is on the cards.
Speaking to ET Online about the split, he said, "Everybody is fine. Nothing really more to say. We were just taking a little break. We're talking. I think everything will be fine and I'm very hopeful."