But Sean, who got a standing ovation from the crowd, left one person out of his speech — his wife, Robin Wright Penn.
Access Hollywood's Nancy O'Dell caught up with Sean and Robin outside of the post-Oscars Governor's Ball, where Nancy asked the Oscar winner about the omission.
"She knows," Sean said, explaining that the couple had discussed it ahead of time.
Robin elaborated further, saying that they knew there wouldn't be "enough time."
When Nancy followed up, noting Robin knows how much her husband cares about her, Sean once again offered a very brief reply.
"She knows," he said again.