Yeah, I guess that should have been our first clue. This film was absolute garbage. Can't believe it grossed >$500m worldwide.
I've read the book, I think there's 3 actually at least 2. The book is much better of course the movie completely changes the plot.
I actually emailed the author years ago to ask him about some plot points and he responded quickly. IN the book there's a running thread about Pat Burrell chasing the all time HR record in baseball I asked him of all the players to pick, why Pat Burrell? I think he had some affiliation to the college Pat attended, he went to Bellarmine HS in San Jose(Burrell) so I knew about him as a kid.
He also talks about some theory that certain types of large ships a couple of hundred years ago used to some often sink at sea and his theory, and apparently some scientist even speculated, was they were being attacked by Megalodons. I asked him if he was serious about that and he said yes, I actually believe it was possible. I then asked so how all these massive ships that cross the ocean carrying containers aren't getting attacked now and he said he thinks the older ships made a specific sound that attracted the megalodon and the modern ships don't make that noise!