Well, there are two movies on YT (tho they arent animated) and you could watch at least the first movie, just to know the basicks.
Just a little recomendation. :)
BeloGrivka is Snowfur on english, and um, one thing, Snowfur lived ina a book that is kinda nesesary to read, but isnt so much nesesary to read, that book is called "Bluestar's propercy".