It's a good movie, and of course, some liberties are taken in movies! It's just how movies are made and Eastwood is one of the very very best at the craft. Sully was in a very very bad spot when the Bird strike occurred, he had to make the decision and he didn't have much time to think about it! The River was really the only option, and it all worked out, due to real skill in flying and a good bit of luck!
