Master and Commander is excellent, as is Black Hawk Down
Master and Commander is fun, partially because I really liked the Patrick O'Brian books, and also because fimmaker Peter Weir got so many things right. He and the scriptwriter got a lot of things wrong, too (The "disguised ship" ploy
never worked in the books...), but the things gotten right far outweighed them and made for a wonderful film. Whoever the actor is that played Preserved Killick got it dead on. Dead. On.
Black Hawk Down was good, and it was curious to see a British outfit (Ridley Scott's production company) doing an American battle story. Tom Sizemore and Sam Shepard were just great. I
highly recommend Mark Bowden's book on the incident.
I would also recommend
Act of Valor for a look. Essentially a movie made by SEALs for SEALs (It was originally put together as a recruiting film for internal Navy use, but somehow got moved to a Real Film status), with active duty guys in the "starring" roles and using live ammo in the "action" shots. There is a completely different feel to the film, as they people making it are not Hollywood types, but actual operators who were given carte blanche to play around with a lot of nifty toys to add realism. At some point, there is a shot of an
Ohio-class boomer surfacing from under a boat that is just mind-blowing. Hollywood would have done it with dopey CGI. The Navy? "Get me Admiral so-and-so at PACFLT..."