With over 100 million book sales and half a dozen film adaptations, Tom Clancy has been a dominant force in the spy thriller game for the better part of three decades. The trio of Jack Ryan films (including two starring Harrison Ford) were huge successes in the 1990s, but flat reboots starring Ben Affleck and Chris Pine failed to fire. While that particular protagonist has found new life on television, Hollywood is now turning its attention to another of Clancy's heroes. A big-screen adaptation that has been languishing in...