Goofs

Before the last battle, Blackbeard orders his "new" flag raised, and a shot is shown of the historical Blackbeard's standard: a demon stabbing a heart with a spear. However, this is the only shot of the flag in the film - during subsequent long-shots of the ship, the skull and crossed swords flag that was previously used is clearly seen flying.

During the opening credits, a map of the British Isles appears on screen. The sparsely labeled map lists only a handful of major cities and locations. One prominent label lists Wales, but is placed over southwest England (Cornwall and Devonshire). The actual location of Wales is unlabeled.

In an early scene, Blackbeard and his crew threaten to attack a French vessel. The flag the vessel is flying is the current French flag, which wasn't adopted in France until 1790. Blackbeard died in 1718. If the French vessel were a royal vessel, it would have flown a plain white standard. If it were a French merchant the flag would be royal blue with a white cross centered and the French fleur-de-lis centered.

Accordion music is played in the background and a concertina is depicted in the pub scenes. The button accordion was not invented until 1822, with some prototypes appearing around 1810, while the concertina was invented in 1829. Edward Teach died in 1718.

Gardiner's Island, traditional repository of Capt. Kidd's treasure, is not, as shown in this movie, in the Bahamas, but on the east end of Long Island, in the present state of New York. And Blackbeard's last battle and death didn't occur in the tropics, but off the coast of North Carolina.

Should have been a more colorful depiction of Blackbeard for he did after all have 14 wives.