Other mistake: When Adam comes in and says "when I woke up this morning, the pain was gone", Connie is mouthing his lines behind him.
Other mistake: When Julie Gaffeny knocks the 2 Iceland players over, she is ejected from the game. But later, after Adam scores the goal, the Iceland player winds his stick up over his head and crushes him, yet he only gets a 2 minute minor penalty.
Suggested correction: This is certainly unfair, though keep in mind the team scolded the ref several times for not making calls they should have and it is blatantly said in the film that Iceland is the favorite team. This appears to be meant to he an unfortunate case where the ref is not being fair out of favoritism. It shouldn't happen, but unfortunately does in real life. You'll find many cases of bad ref calls in leagues out of suspicion of favoritism.
Other mistake: Why would the entire crowd and all of the players wait after the final shoot-off shot? It would have been pretty easy to tell whether the puck went into the net or not. I understand the dramatic ending and all, but it just seems goofy.