The screenplay is based on a 1955 novel by C.S. Forester (of Horatio Hornblower fame) called "The Good Shepherd" (link). Sounds like it should be quite the psychological thriller, focusing on the difficulty of command. Hopefully it hasn't got the U-571 "blowhard US makeover" treatment.
Filmed aboard the Fletcher class destroyer USS Kidd (filling in for a Mahan class it seems)
Not too worried about the low-grade CGI - often in trailers it is of lower quality. Incidentally, it turns out the director was a second-unit director on Titanic.
Last Edit: Mar 7, 2020 14:21:26 GMT 12 by chis73: added link
The really annoying thing I find that with CGI movies is they try to jam WAY TOO MUCH 'activity' into one screen width making separation of objects such as aircraft or ships seem way to close together. The other factor is that nothing appears to actually move realistically (ie. ships move way to fast through water and aircraft in flight may as well be Star Wars X-wing fighters).