BESM is a cel shader written for Lightwave. I was NOT involved in day to day production.  Most larger productions use multiple packages. 

Programmer Art

Master of the Sixth Speed
   Rhythm and Hues


Yukikaze - GONZO

Robbie Williams -
"Let love be your Energy" 
   Passion Pictures

Invader Zim

Production also used Allen Hastings SuperCelShader

Justice League cartoon intro
  Cartoon Network

The Manchurian Candidate
  Barbed Wire