Some mainstream critics have complained Greyhound is too steeped in naval-combat tactics and lacking in depth of character and story, which is funny, as that's the whole point of Tom Hanks's new World War 2 movie. This is a slice of military history; a film that attempts to capture the harsh, and often frightening, reality Allied convoys faced as they crossed the Atlantic, knowing Axis U-boats lurked beneath them and could strike at any time. Greyhound is based on the 1955 novel The Good Shepherd, and details an inexperienced captain's first wartime mission guiding troop transports to Europe. They ended up relentlessly hunted by four U-boats, which resulted in one of the longest, largest, and most complex naval battles in history. I love military history, especially World War 2, so Greyhound is right up my alley. I don't often get caught up in tactics and lingo, but so much of Greyhound relies on just that for its authenticity, that I didn't mind this ...