I don't want to ruin anything for you, but I saw it in theaters with a bunch of military aviators, and those scenes were so unrealistic some of them wanted to leave the theater.

I enjoyed the movie in a big way but I didn't think it did a good job of showing the scale or sense of urgency and importance that event had. It wasn't some small scale rescue, it was the European theater's entire allied army surrounded by the entire axis army. The movie made it seem like there were a few hundred guys trying to get on boats, and that's what my friends that weren't aware of the event now think happened.

Again, I still loved the movie, but I think it fell flat in a lot of ways.