This is a shot from "The Monk and the Devil" feature film. (https://vimeo.com/183047927)
Here are stitched two different takes and completely replaced water with the CG (the same done with cloths). Cloths and water simulations were done separately (in a different software). Cloths sim took about couple hours and final water SIM took around 40 hrs of machine time.
The most part of the image you see comes from beauty render. Render passes where used mostly to fix some issues with speculars or refractions in some single frames.