Review: Disney’s McFarland runs on inspiration

McFarland 2.5 stars Starring Kevin Costner, Maria Bello, Carlos Pratts and Morgan Saylor. Directed by Niki Caro. 129 minutes. Opening Friday at major theatres. G There’s a reason there’s no category for “depressing Disney sports movie.” Nobody walks into a Mouse House title released under its “inspirational” umbrella unsure of the outcome. Yet McFarland, starring a…