Russell Crowe lost his way kayaking off New York's Long Island and had to be picked up by a Coast Guard boat and taken to shore.
The 48-year-old Oscar-winning actor was kayaking with a friend on Saturday. They launched their kayak from Cold Spring Harbour on the Long Island Sound but lost their way as the sun went down.
The Coast Guard said Russell and his friend apparently made their way to Huntington Bay beach and called out to a boat on patrol.
Petty Officer Robert Swieciki said the two paddled over to the boat, got on board and hitched a lift back to Huntington Harbour.
Russell is on Long Island filming new movie Noah in Oyster Bay.
He sent a Twitter message thanking the officers.
"He just needed a little bit of help, he just got a little lost," Mr Swieciki said. "It wasn't really a rescue really, more of just giving someone a lift."
Mr Swieciki said no one was injured and the two men were wearing life vests. He said the actor, who was grateful and friendly, seemed like he was a fairly experienced kayaker.
The Gladiator star's Twitter message, sent at about 1.30am on Sunday, thanked the officers and said he was out on the water for four-and-a-half hours.
"Thanks to Seth and the boys from the US Coast Guard for guiding the way... 4 hrs 30 mins," he wrote.