The first scene shows Black Beauty's (ill just call him "BB") mother giving birth to BB. Older children may be OK with this, but this scene is sorta graphic and it grossed me and my brother out (I was 11 and he was 3-I think-_-) I know its a "miracle of life" but I know parents who didn't like their kids watching this scene.
I absolutely love animals including horses, but I just can't bring myself to rate it higher. I've always been a sensitive kid, but this movie was particularly devastating to me with animal abuse and Ginger's death... it's just too sad. As great as "Black Beauty" is, I would never watch it again or recommend it to a sensitive person.