I don’t know why, but I just can’t get all worked up over Dan (Buck) Brannaman, subject of the documentary “Buck.”

Sure, he survived a hellish childhood to become a renowned horseman, and he taught Robert Redford to ride for the 1998 melodrama “The Horse Whisperer,” whose main character was inspired by Buck.

First-time director Cindy Meehl follows her subject as he travels cross-country showing off his horse tricks. Friends and relatives offer interesting insight.

But is all that worth the expense and bother of going out to a theater? “Buck” is best left to TV, where it will land soon. It’s “The Horse Whisperer” that should be seen on the big screen.