Other mistake: Even though it is snowing throughout much of the movie, none of the snow seems to stick to any of the characters' fur. Even during the fight scene when they are rolling around in it, they are never covered with white.
Continuity mistake: When the squirrel gets stuck between the 2 glaciers he gets stuck at the bottom of them, but then it shows him getting fired out of the top of them. (00:02:49)
Suggested correction: Scrat may have got sucked up to the top.
Or squeezed all the way up and spat out. Either way Scrat is a much cartoonier character than the others and more extreme things happen to him.
Plot hole: In the Ice Tunnel scene, Manny, Sid, and Diego come to a stop on the vertical block of ice. It breaks, and they slide through a 'field' of icicles sticking out of the ground. Their 'sled' is shaved down to nothing, indicating that the icicles are sharp. After going through the same tunnel as the baby, how did the baby make it through that field? (00:46:53)
Suggested correction: A possible reason for the sled slowing down is not due to the ice tunnel but the sheer several tons of weight the sled had on it while it was sliding through the tunnel.
Good point. Without the weight, the icicles would had slowed down the sled instead. And since the baby hardly weighs anything at all, it wouldn't have been able to slide through the field, it would've just collided with the front icicles and stayed there. But it still leads back to question of how the baby got through the field.
Not true, their "sled" is destroyed by the icicles.
Continuity mistake: The scene where Scrat is trampled you see the feet of a camel-like animal and the feet of a mammoth. When the camera pans up, the mammoth is nowhere to be seen. (00:03:23)
Other mistake: After Scrat's landing you can see three pair of feet who are stomping on him. At least two of the three pairs belong to tetrapod vertebrates (as can be seen when the camera pans up to behind the herd), so where is the second pair of their respective owner's feet? (00:03:10)
Other mistake: The scene where Manny builds his shelter, he is bothered by what Sid is saying and, after Sid asks him about his family, he turns around. The shelter that Manny has built is not large enough for him to turn around in it unless he walks out and turns around, which he does not do. (00:13:37)
Continuity mistake: Near the beginning of the movie, when Sid decides to return the baby, he starts trying to climb up the cliff. The baby falls out of the little sleeping bag. After that, we never see it until it's used in the plan to escape the saber-toothed tigers. Animals don't have pockets, and I don't remember seeing anyone carrying it around, so where was the sleeping bag in between these two times? (00:20:10 - 00:38:55)
Continuity mistake: Scrat lands on the main road and is not stepped on for 16 seconds. During that time, not one animal passes by. Yet once he is stepped on, the animals pass by at 2 to 4 seconds each, and when the camera pulls back, you can see dozens of animals. Scrat should have been hit as soon as he landed. (00:03:25)
Continuity mistake: During the long sequence when the two animals are racing downhill through the snow, the weather suddenly changes from very snowy to extremely sunny.
Continuity mistake: When Sid wakes up and finds out that his family has abandoned him again, a animal in the process of migrating is walking by him leaving no traces of anything. But when Sid takes his next step, he walks into some feces he claims belongs to the animal that just walked by him. But the animal did nothing at all, the feces wasn't even there to begin with. (00:05:59)
Continuity mistake: At the part where Sid, Manny and Diego are at the "shortcut" Sid says "I choose life" and walks out of the shadow of the glacier thingies. In the next shot, the shadow is completely gone.
Continuity mistake: When Sid is climbing up the wall, he is having trouble at a metre above the ground, Manny starts to say something. Mid-sentence the shot goes back to Sid and he is twenty metres up. (00:20:35)
Continuity mistake: At the end of the film when Manny lifts Diego by his tusk, the position of Diego's left paw on Manny's tusk changes places between shots.
Deliberate mistake: When Scrat's coconut falls from the tree, it has already had its husk removed. The directors confirm this on the DVD commentary. They may have been worried that a lot of their audience would not recognise a coconut with its husk on. (01:11:45)
Continuity mistake: When the Sabres are chasing Sid on the skis (made out of two slabs of rock), Sid loses one of the skis, one of his feet is then flapping about and the other one is on the back end of the ski (which then becomes a snowboard). In the next shot(no time between them) Sid has his foot halfway up the ski.
Continuity mistake: In the cave scene where the animals are racing down ice tracks, there is a close shot showing Manny with his trunk flapping to his right. Then there is a long shot and his trunk in now flapping at his left. (00:47:10)
Other mistake: When Manny is returning Roshan to Runar, in a shot of Manny's back Roshan is not on his back. When he gives Roshan to Runar, he is on his back.
Suggested correction: Roshan is out of shot.
Continuity mistake: At the beginning of the movie, the feet of two mammoths and a dodo bird can be crushing Scrat, but when the camera pulls away no mammoths or dodos can be seen in the herd.
Continuity mistake: In this scene Soto backs Lenny into the rocks as he describes how to bring Manny down, as Zeke and Oscar are walking on Soto's left and right side. When Soto finishes talking, Zeke and Oscar have suddenly switched places. (00:56:50)
Continuity mistake: During the ambush sequence, the sky is dark and overcast. However, while Sid is creating the distraction by skiing and snowboarding, the sky is bright blue with white fluffy clouds, and immediately thereafter the sky returns to dark and overcast.
