Disney knows what you like. You like predictable. You like pleasant. No matter what you say, you ride It’s a Small World. So Disney pulls out every cliche in the sports cinema book for “McFarland USA,” a 2015 heartstring-puller starring Kevin Costner. The sport is cross-country, but you feel like you’re watching a circa-1987 ripoff of “Hoosiers” with Mexican farmboys instead of Indiana farmboys. But hey, people like fairy tales because they know everyone lives happily ever after. And this is that, even if it’s based on a true story (with a lot of stuff left out and/or glossed over).