Character mistake: When Johnny Blaze plans on jumping the football field he says he is jumping field goal to field goal. The movie says multiple times he is jumping 300 feet. End zone to end zone is 300 feet. Field goal post to field goal post is 360 feet.
Character mistake: After Nicholas Cage jumps the line of trucks and lands on his head, his team race over and immediately pull off his crash helmet to see if he's OK. Anyone with first aid training or experience of crash victims would know to leave a crash helmet in place, as it could cause further spinal injury to pull it off. The helmet should only be removed if the victim is not breathing, and in other cases should be left in place with just the chin strap undone.
Answer: "The West was build on Legends", by Christopher Young, from the movie's score.