"The Sentry" follows a suave Western spy who thinks he's got it all figured out - infiltrate a jungle bunker in Cambodia, handle a few guards, get home in time for martinis. But when one particularly stubborn sentry refuses to leave him alone, our flustered spy discovers that his world of international intrigue is no match for something far messier: real life. A cheeky dismantling of spy tropes that serves up action and heart with a side of cultural comeuppance.