I've read the book a few times, I saw the movie from 1934, 1950 and 1972, and all of them were at least close to the book. This movie is really a big disappointment, the actors are bad, really bad. It starts with Jack Palance as Long John Silver, there is no charismatic and intelligent pirate leader. Captain Smollet, Officer of the English Empire bargains with Trelawney for a part of the treasure. The story details have totally changed - they really let the key characters, Trelawney, Smollet and the doctor die and Long John Silver, Ben Gunn (his enemy) and Hawkins get the treasure and sail the ship home. I really wondered that there were no alien-Nazis in the end.
Time for a mutiny!
Time for a mutiny!