"An unforgettable film about an extraordinary man."
— Derek Malcolm, London Evening Standard
"A haunting, beautifully told tale about a genuine American original."
— Andrew O'Hehir, Salon
"Beautifully but simply wrought by director Cindy Meehl, this deft documentary is a poignant reappraisal of what it means to be human."
— Joe Williams, St. Louis Post-Dispatch
"Documentaries have a wonderful way of making us care about people and things way outside our own experience, and 'Buck' is a prime example."
— Mick LaSalle, San Francisco Chronicle
"It keeps you fascinated, even enthralled; elicits astonishment, even wonderment, and makes you grateful for the chance to meet someone remarkable."
— Joe Morgenstern, Wall Street Journal
"The result is a portrait that expertly mirrors its subject: Buck is shaped with the same economy, restraint, and unfussiness as the man, to unexpectedly inspiring effect."
— Lisa Schwarzbaum, Entertainment Weekly
"Buck is a movie to be revisited again and again, like passages from a satisfying self-help book. Riding experience isn't necessary to realize how extraordinary this man and his calling are."
— Steve Persall, Tampa Bay Times
"In some sense it was beauty that saved Mr. Brannaman, that of his conscience and that of horses, which, having been tied to humans long ago, became companions, workers and for some, as this lovely movie shows, saviors."
— Manohla Dargis, The New York Times