we had dump tanks dumping water on us, wind machines. >> are you okay? >> i'm having a great time now! >> reporter: the plot of "the finest hours" ripped from the history books. opening this weekend from our parent company disney. >> hold on! >> reporter: to play a massachusetts mariner, it meant working on his accent. >> i don't blame this on nobody else, did it it! >> the boston accent, almost as treacherous as the waves you were navigating. >> it can be very difficult.