Greyhound was a very decent film in many ways (Looked good, acting was good, pacing was spot on and decent tension during the action scenes), but the dialogue was a little too technical for me and it left me cold.
Apart from the very brief bit of backstory for Hanks’ character, there was nothing to invest in or care about with the rest, it was just Hanks and a bunch of decent extras shouting ‘Hard right propeller, 10 degrees, 2 miles out, fire in the poop deck, there’s Klingons on the starboard bow’ over and over again.