Ben Affleck has been banned from playing blackjack at a Las Vegas casino.
The Argo director was approached by security at the Hard Rock Hotel and Casino after they spotted the Oscar-winner counting cards - a gambling strategy that involves counting card values to decrease betting risk - during a major game last week.
A source told gossip website TMZ.com Affleck, who was enjoying a trip with his wife Jennifer Garner before he starts shooting Man of Steel, was deemed to be an "advantaged player" and then banned from playing the game in the hotel again.
Despite the incident, which is frowned upon but isn't illegal, Affleck is still said to be welcome to play other games at the casino.
Another source told UsMagazine.com: "Security said 'You are too good at the game'. The hotel was really nice about it and told him he could play other games. They ended up getting him and Jennifer a car back to their hotel too."
A spokesperson for the actor, who has three children, Violet, eight, Seraphina, four, and two-year-old Samuel, declined to comment.