Continuity: I've now seen this for myself and am making an executive decision. Towards the end of the film, when Helen Hunt runs after Tom Hanks, she definitely does shout "Jack! Jack!" It's not Chuck by any stretch of the imagination. Regardless of whether they could have corrected it or not, it's a mistake that could have been avoided.

Continuity: When Tom Hanks cuts his hand and loses his temper, he picks up the volleyball with a bloody hand and throws it. When he picks it up, you can see that his fingers are spread. When you see the handprint that he makes "Wilson" with, you can see that the fingerprints are together and parallel.

Continuity: When Chuck is attempting to start a fire his hands are so badly scratched/blistered that he ties a piece of fabric around one of them. Once he has started the fire and is doing his little dance on the beach his hands face the camera and there is not a mark on them.

Continuity: When Chuck finds the dead pilot, he buries him and marks his death as 1995, so we can assume the crash was in 1995.  His Jeep is a 1999 model - you can tell by the wheels and the roof rack.

Factual error: In the scene where a boy runs on the streets of Moscow, he passes by the famous Moscow landmarks: St Basil's cathedral, Moscow State University, Big Stone Bridge etc. In reality it would have taken him a good four or five hour run to do that.