Goofs

At about 3 minutes into the movie the escape scene alternates between night time and bright sunny day between shots.

Early in the film Blackbeard is talking to Maynard on deck. In a close up of Maynard he has is arms folded but in a medium shot they're by his side.

At the end of the film the pirates bury Blackbeard up to his neck well up the beach. There's then a shot from behind him showing his head above the sand but now at the waters edge.

Blackbeard looks through a telescope down at (Morgan?) on the beach; but the ensuing closeup, with a frame to infer it's through the telescope's lens, is from a ground level angle.

Blackbeard has a bullet in his neck and asks Maynard to remove it. As he does so, no blood gets on Blackbeard's shirt, on Maynard's hands, on Maynard's prob, or on Maynard's knife.

There is an obvious stunt double during the sword fight scene at the end.

Blackbeard buries the treasure at night, but the nighttime sky is a brilliant blue. Filters were used to darken the scene, but nonetheless, there is an abundance of light, and of course the blue sky, to illustrate filming was done during the day.

After the sword fight between the doctor and one of crew members the body is thrown over the ship's rail. During the wind up to throwing that body over the rail the body is holding his head up.

Although Henry Morgan is depicted as Blackbeard's chief antagonist, Morgan retired on 1683 and died in 1688, when Blackbeard (born circa 1680) was only eight years old. Blackbeard did not arrive in the Indies until the closing years of the 17th Century, well after Morgan's death.