I was attached to this project for on an off 13 months since early pre-production. I was able to directly interact with the director Claudio Faeh via Skype which was great. My main task was the tower destruction during a climatic moment in the movie. The simulations were all TP and the FumeFX and Krakatoa for the fire and smoke and spanned over half a dozen shots.
The main animation of the tower was driven with helpers and proxy geo, and prefractured with RayFire. TP then inherited the motion and triggered VolumeBreakers based on velocity, friction/grinding against other big chunks and impact with the ground. A lot of this is covered in dust and smoke :-p
The other shot that turned out great is the sinking sword which leads to the movie title. This shot is 100% CG.
Shading and lighting was not done by me btw. I just delivered XMesh caches. The fabulous team over at DayForNight GmbH added the VRay and Nuke magic to it.