In the scene where Sam is chasing Frodo into the river, there is a shot of Sam sinking in slow motion. However, you can see that the water surrounding him is murky with sand. That proves that his feet are touching and kicking the bottom.
In the scene where Gandalf and Sauruman are fighting, Gandalf is thrown to the ground and starts bleeding. But if you look carefully, every other shot Gandalf has blood on his face, then none, then more blood, then none.
When Frodo is getting dragged away by the cave troll, he cries out "Aragorn! Aragorn!" but his lips don't move.
In the scene where Sam and Frodo are in the field with the scarecrow, you can plainly see a car cruising past in the distance, from right to left. This holds the dubious distinction of being the first urban myth (of sorts) spawned by this site - some people swear blind there's a car there, others insist there's nothing at all. All I can say is watch it and make up your own mind. If there is a car, they'll delete it for the DVD release, so get in there quickly! Further comment - there are two different shots which show the car moving from right to left. One starts at the top right distance, and in a shot a few seconds later the car has travelled down the road a bit and is more easily visible. Complicating matters is that the dust thrown up by the car looks similar to smoke from a chimney in the right distance, making some people think it is just the chimney. But chimneys don't move, and the smoke from the chimney is separate from the moving vehicle. [It is deleted on the DVD, but you can still see an obvious bit of image fakery on the hill just left of the smoking chimney. One can see the hill, tree, and surrounding area move up and down and shimmer slightly where someone has done a cut and paste to cover up the auto. The "car inclusive" scene appears on the National Geographic documentary Beyond the Movie The Lord of the Rings: The Fellowship of the Ring.]
As Boromir and Aragorn talk right before Boromir dies, you can see Boromir's right hand gripping Aragorn's left shoulder in the shot from behind Aragorn's right shoulder, but when the camera veiw changes to Boromir's perspective, looking up at Aragorn, his hand is not there. The scene goes back and forth between these two views several times.
Towards the end of the movie, where Frodo is collecting wood and he has the fight with Boromir, he puts the ring on his finger, somehow it went from the chain he had it on to his finger without any problems. the next time he has the ring is when he takes it off (no chain) and offers it to Stryder (no chain) when he is down by the river, he has it on the chain in his hand...too much action going on with that chain.
When the Fellowship meets in Rivendell, and the Dwarf trys to break the ring with his axe, the axe breaks into many pieces on the platform upon which the ring is laid. At first, the pieces are there in the closeup view. When the camera pans back for a long range view of the Fellowship, the pieces of the axe on the platform are gone. In the following closeup, the pieces magically re-appear.
At the beginning of the Fellowship's journey, they are resting on a hilltop (Hollin) with rocky formations. Bill the pony is tethered in the background in one shot. Then come the spying crows from Saruman and they all quickly hide. When the crows swoop in closer we see no-one, but who hid the pony and where?
Most of the time the hobbits are barefoot, but when Frodo and Sam are first walking through the fields, Frodo's leg come above long-grass level and his shoe is clearly visible.
When the Fellowship crosses a mountain ridge, just before Frodo falls in the snow and loses the ring, there is an aerial shot - where's Bill, the pony, in that shot?
When Legolas arrives in Rivendell, you see him dismount his horse and turn to view the area. Right after he jumps off you see he is just behind his horse's front leg. After the shot changes, he is a couple feet forward from his last position.
At Bilbo's party, when Merry and Pippin set off the dragon firework, they are shown inside a small tent. The tent has dishes and other things in it, and is quite full. When the firework launches, taking the tent with it, you can see that all of the things inside the tent (with the exception of Merry and Pippin) have disappeared.
Sarumanīs orcs are busy tearing down trees for firewood. In the second shot of this sceneyou will notice that one of the orcs in the central foreground falls on his backside as the tree hits the ground. A few scenes later and another group of orcs are pulling down another tree; except that itīs the same group, pulling down the same tree, just filmed from a different angle. You can see the orc falling down once again, this time on the left hand side, behind a burning brazier.
Boromir cut himself with the broken sword, and we can see the blood. However, after he sees Aragorn, the blood is gone. Look closely when he is putting down the sword.
During the scene when Isildur cuts the Ring from Sauron's hand, it is obvious that he is against a pretty tall rock wall. But, when we see an overhead shot of the Dark Lord exploding, there is no rock wall. Notice how there are soldiers all around the explosion.
In the scene where Saruman is using his magical powers to bring an avalanche down on Cahadras, and the Fellowship, there is a computer generated shot which swings right around the top of the Orthanc tower which Saruman is standing on. Watch Saruman's feet as they approach the bottom of the screen or even better, put in in slow-mo. His feet fade out of view before they reach the bottom of the screen.
When the orc kills Boromir, he shoots him twice, and you can clearly see the hole/blood stain for the third arrow between first ones, and only then the third arrow appears.
When Gandalf arrives in Hobbiton, you can see a long silver scarf (as described in the book) dangling from a post on his cart - next to the driver's bench. In the first shot it is on the right hand side of his cart In the VERY next shot, the scarf has moved to the left hand side of the cart, nearer to Gandalf.
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