The problem is a movie I can't remember its title. I've seen its trailer for a few years ago and it still haunts it.
I saw it on some old 80-90's video. I think the genre is comedy: There is a man who gets into accident and his body parts are secretly twiched to mechanical parts and he soon sees it for himself. In the trailer his head reaches high (giant metal-thing popping up as to be his neck)when he tries across the street. Its not animated.
The movie is not Bicentennial Man.
Hopefully somebody knows the movie's title!
( sorry about the help!-sign there can't edit it off.)

Sounds almost like Inspector Gadget ?

If it helps, here is the trailer to Inspector Gadget (1999):
YouTube - Inspector Gadget trailer

It was almost as much fun as the animated series.

Yes this is it! Thanks for so fast answer! :)