Based on a novel, parlayed into a screenplay by the man who helped bring "127 Hours" and "Slumdog Millionaire" to life and directed by the man behind "The Cider House Rules" and "Chocolat": "Salmon Fishing in the Yemen" has some serious heft behind it. And with due cause; there's a lot going on, and without this collective experience "Salmon Fishing" could have easily been swept away under the current of its own story.