Action movies are generally larger-than-life, with a combination of stunts and memorable one-liners, but Sisu breaks the rules by introducing a virtually silent protagonist. Granted, he's just as compelling as many of the best action movie characters of all time. Sisu's hero has been compared to "a modern-day Rambo," despite being played by an unknown actor rather than a great action movie star. The movie stars Jorma Tommila as the formidable Aatami Korpi, and critics loved it. Being Finnish, low-budget, and without a big marketable name, Sisu flew under the radar. That said, it has become a sleeper hit, gaining...