well, is because u'll never find a model in a movie that has been made with catia! i mean, catia is a cad professional program, used by engineers for creating shapes that has to be produced. it requires more knowledge about how this piece of geometry will be produced when using catia, instead in 3ds (or ny other poly modeling software) u don't need that =) Different target has different tool and different users =) u should know all that and "we" should be thankfull that not everyone use catia XD so we will always find a job XD haha =) lol joking =)
By the way, nice model =)
CPU 2x Intel Xeon E5620 @2.40 GHz
Memory 12 GB Corsair
HDD WD 320GB WD 2TB
Graphics Card Nvidia Quadro FX1800
Monitor Setup 24" Samsung
OS Win 7 Professional x64