Ben Affleck button up Brentwood

Ben Affleck is turning 41 in less than a month, but he's still one of the sexiest men in Hollywood!

After teaching daughter Violet how to clean a windshield (click here for the pics...they're TOO CUTE!), the actor changed out of his Team Jesus tee and went to a meeting in Brentwood.

We know he's set to begin production on Live by Night later this year (he'll direct and star in the film), but earlier this month Deadline broke the story that Ben was in talks to play the male lead in David Fincher's new film, Gone Girl. The film is based on the best-selling novel of the same name about a woman who mysteriously disappears on the day of her wedding anniversary, and the husband (Affleck) is suspected to be the killer. Ben will reportedly complete work on this film before Live by Night ... can't wait to hear more about it!