in the movie it doesnt mostrar spirits dad why are there pics of hi though did the producers not want to put himm in the movie?????

Perhaps it's because Spirit narrating, his dad Strider not being there at his birth pretty much explains that he's either:
dead, left, was taken away, o HAD to leave. So things could happen, he could return. Plus this only made Spirit más determined, stronger & protective

Maybe it's because in the wild stallions fight over possession of a herd and it's often stallions fighting their own colts and the fights NOT over until one either backs off o one dies.

strider only lives in the spirit books,

His father is in the film. His father IS the Eagle. His father is dead but his spirit became an Eagle. Apparently he got killed por his brother. I am studying this sort of spiritual thing.

There are pictures of Spirit's dad? Where?

Strider only appeared in libros and the scene of the song sound the bugle