Visible crew/equipment: When Ted is sliding down the hill after being chased by a bear, you can see a plastic sled on his back.
Continuity mistake: When Ted is out mushing with the dogs, the dogs take off after a fox. Ted tries to stop the dogs with his hook. He gets dragged behind the slide with the hook hooked to his right boot, then it cuts back and its hooked to his left boot and then back to the right boot.
Continuity mistake: When Ted's mother is waiting with Barb at the finish line, she has a scarf on. You can see it in several shots sticking out from her coat. In the final scene when Ted crosses the finish line, the scarf has disappeared.
Continuity mistake: When Cuba is driving in the Beetle with the skunk, the skunk is in the back walking around on the platform under the back window, but we cut to Cuba with a clear shot of the back window, and there is no skunk. Yes, Cuba's head is in the way a little, but that is a big, bushy skunk. Plus in the next shot they show the skunk again, and it wasn't in the place where Cuba's head would've been hiding it.
Visible crew/equipment: When Ted slides across the ice and it starts to crack, he moves from ice block to ice block until he is standing on one piece (and he tries to make his 911 call). The camera angle then changes to a top down view of him sinking. From this angle you can see the hydraulic table platform used to create the illusion of him slowly sinking, perfectly balanced on the block of ice.
Revealing mistake: When Ted Brookes slides onto the ice pond after falling down the hill, you can see that at first he slides onto an actual ice pond. In the next shot, you can see that the ice has changed and he is now on a fake ice pond when it starts to break.
Continuity mistake: When Thunder Jack is looking in a store window, his jacket is at first orange, than gray, this happens many times.
Visible crew/equipment: After Ted is dragged by the foot he ends up body sledding down hill. You can clearly see a black leather pad between his back and the ground. When Ted rolls over on to his chest the black pad moves from his back to his chest.
Continuity mistake: When Ted's mother comes to Alaska to find Ted, Ted is out looking for Jack. Ted's mother is standing at the finish line waiting for Ted. When we first see her she is holding a Teddy Bear, the shot cuts to Barb coming out the door than back to Ted's Mom and the Bear is gone.
Continuity mistake: After Ted has rescued Jack from the cave, Jack is strapped to the sled and Ted is on the back, with both Nana and Demon as the 'lead dogs' (Jack's dogs are also attached to the sled, but this is irrelevant). In one shot, Nana is on one side, Demon on the other, but in the very next, their positions are flipped around. The ganglines make it impossible for the dogs to do this (cross over) whether they are stationary or moving, so it could not be that Nana merely decided to run on Demon's other side, or vice versa. And even if this was possible, you can see perfectly well that the lines are uncrossed and untangled; totally fine.
Revealing mistake: When Ted arrives in Alaska he has to take a small, single engine plane to his destination. When he gets out of the plane, the runway is supposed to be covered with ice, making Ted seemingly slip, slide, and appear to be running in place trying to keep his balance. But if you look closely, you can see that he is wearing roller blades instead of boots when he is running in place.
Continuity mistake: In the establishing shot of the dentist office, Rupert is advising a patient. He is wearing a purple shirt and matching tie. When he next appears in Ted's office, he is wearing an orange shirt and tie.
Factual error: When Ted is outside Lucie's Cabins, it is light outside. Then, it shows Ted inside the cabin, lighting a lantern, and you can clearly see that it is dark outside.
Continuity mistake: When Cuba is driving the beetle, there is a skunk in the back. Well if you continue to watch out the back window, you can see that it changes from the town to just trees. It switches a couple of times.
Continuity mistake: As Thunder Jack drives along in his car and sees Ted rolling in the snow after being sprayed by the skunk, his rifle on the back of his truck has a wood stock. When Ted is in the car later, the stock has somehow changed to a synthetic grey.