This is my old short film project that I live up now. This is a frame from it.
The render time on my AMD4600 dualcore machine is: 3 minutes (hd 1920*1080) - with DoF and motion blur, glow etc.
I use "near realtime" things: only buffered shadows (no raytrace), fake reflections, normal maps, detail maps etc. So it can be render in realtime!
The short film coming at end of march I hope. :)
I use Blender, internal render.
Sorry for my bad english.