Chris Pine felt like he was on a "big roller coaster" when he was shooting 'The Finest Hour.'
The 35-year-old actor - who plays the Boatswains Mate First Class Bernard Webber in the forthcoming movie - thought filming the out-at-sea scenes were really fun to do because he felt like he was on a turbulent funfair ride.
Speaking to Collider.com, he said: "It's like a big roller coaster ride. It is pretty terrifying when you see all that water coming at you, but it is really fun.
"Yeah, it gets more difficult when we're out there and they're pounding us with the elements and the wind and we're in a huge aluminium box basically that just traps the cold weather, the cold air, so it can get difficult."
The movie, which is set for release early next year, follows the rescue mission in 1952 off the Cape Cod coast after two oil tankers were smashed into pieces by the wind and waves.
The crew onboard a motor life boat and surfboat manage to rescue and pull to safety almost all the tankers' crewmen.
He explained: "This is almost like a studio film from the 50s, you know? There's no cursing and people are good and right and love conquers all, it's really very sweet.
"There's a sweet earnestness to this film that people will either engage with or the cynicism of the world will win out, but I hope that people appreciate that."