My eyes do the same thing, but i have another problem commonly called lazy eye, this means that i cant concentrate on one thing for long, before one eye starts to drift sideways.

the point of this is that when this happens my eyes change different colors. ex:light green and a brownish-blue

All those are good movies and series (except for pokemon of course).

since ya'll are all mentioning series then I think that for me it would have to be robotech just like Elden
But the secondary question still remanes about the mystery anime movie.

what is the first anime that you ever saw in your life?
this can be a movie or a series.

For me the first anime was on SiFi and the name ecapes me, so if you know then please tell me.

all i can remember is that a boy from earthis chased by evil robots and he then find a beautiful women that takes him across the solar system (on a flying train) and and finds out more than he wanted to. ex: the women is an android