Here is a quick RealFlow 101, showing you how to create a simple fluid sim and get it rendered with Maxwell Render.
RealFlow Case Study - Blur Studio
Blur Studio's Brandon Young talks about using RealFlow on the Batman: Arkham Knight trailer.
Fluid Dimension Challenge
Next Limit and Maxon team up to provide Cinema 4D users with an opportunity to try their hand at 3D and fluid simulation.