The ones in the movie.
All reviews of the incident that I have read said he had no choice but water. The only thing he screwed up was he didn't hit the ditching switch which allowed the plane to sink more rapidly.
And just think if Sully had not been successful we might never have known Helen the EMT tech thar we now see doing Omega XL commercials every few minutes of every day…. Seriously, as a pilot, losing all control hydraulics usually results in no survivors….
US Airways flight 1549 (Sully) and the “ditching switch.”
I am assuming using it slows water coming into the airline cabin?