After 33 years...
"The Deep" remains as boring as it was in 1977. Make that stupefyingly boring, given some of the talent involved. If someone other than Peter Benchley had written the book (and Jaws, the movie, hadn't been such a hit), this piece of drivel would have never made it past concept stage.
Amazing thing is the IMDb spoiler tags identify this movie filling the Horror/Mystery/Adventure/Thriller genres. If only it had been any of those...