Continuity mistake: From the meeting with M to Dorian Grey's place, the amount of makeup showing Skinner's head varies too quickly to be real.
Continuity mistake: When The Phantom kicks Quatermain's gun along the floor we see the gun landing close to the wall. In fact the tip of the gun even sticks a bit in to a hole in the wall. When Quatermain a few seconds later picks the gun up the gun has moved at least a feet away from the wall. (00:24:40)
Continuity mistake: At the very end of the movie, Tom Sawyer works the lever action on his Winchester rifle before laying it on Quatermain's grave. On this type of firearm working the lever-action cocks the hammer, but a moment later we see a close up of the grave and the hammer is down. (01:41:40 - 01:42:30)
Continuity mistake: When Dorian Gray is shot with the machine gun, all the bullets are taken right in the gut, and the wounds are correctly shown in mirror-image when the back view of him is shown. However, the next shot of his front shows a couple of wounds in the shoulder, the biggest one being in his right shoulder at the very top, a wound which was not visible in the back view. (00:27:55)
Continuity mistake: When Mina stabs Dorian Gray the last time, the sword does not come out of his back. After she stabs him and Dorian turns around as Mina is pushing him toward the wall, you can see that she put nearly the entire length of the sword through his body right below his heart, yet nothing shows out the back side. (01:03:00)
Continuity mistake: During the brawl in Kenya at the beginning of the film, one of the goons is seen throwing knives at Alan which seem to pin him to the wooden pillar; yet in in a previous shot just before Alan slams the table onto one of the goons, the knives are already embedded in the pillar.
Continuity mistake: When The Phantom tells Quatermain to drop his gun, Quatermain drops it. It cuts and we see the gun landing with the handle pointing out. The way Quatermain dropped the gun the handle should be pointing in. The gun could not have changed angle that quickly when watched how it is dropped. (00:24:00)
Continuity mistake: When Quatermain hits the man to the ground before breaking a bottle on his head, you can see a shotgun on the floor next to the man. When it cuts, the shotgun is gone. (00:10:00)
Continuity mistake: When the League are at Gray's home and the Phantom interrupts, he tells Quatermain to put the gun down. The gun starts falling pointed to the right but a close up shows it landing pointed to the left, but it never flipped. (00:24:00)
Continuity mistake: When the man Quatermain wounded with his shotgun swallows the poison pill, you can see a lot of people close behind the man. When it cuts, everyone has moved a few feet away from the man. (00:11:25)
Continuity mistake: When the fourth attacker is brought before Quatermain he poisons himself. He falls on his back with his right arm stretched out behind him, but when the camera angle changes the arm is lying sideways. (00:11:30)
Continuity mistake: When Quatermain hands the rifle to Tom Sawyer, both hammers are down, yet without cocking either of the hammers Tom fires two shots. (00:46:10)
Answer: After Quartermain is buried, we see a witch doctor performing magic above his grave and the clouds darken indicating something is about to take place. The witch doctor is chanting "Return" and the grave begins to shake. Although we do not see Quartermain come back to life it is most definitely hinted that he did and left room for a sequel which never came to pass.