Great White

I watched the movie Great White on Shudder (also available on physical media), and enjoyed it very much. It's an Australian-made thriller about a group of people fighting off shark attacks while in a lifeboat. It's got some good thrills and chills along the way, despite a seemingly obvious plot. No bondage, but the two female leads go barefoot for the last two thirds of the film, making it a good BF flick.