In the game played between Europe and Canada in Davos, we see a crowd on the stands. However, in the breakaway scene in front of the goalie, the stands are empty.
The jerseys worn by National on NHL game between Boston and Quebec are those of the former Quebec Nordiques.
During the Russia/Canada championship game, since most of the scenes in the Quebec Colisee were shot during the 1987 All-Star Game between Russia and NHL Stars, we see the back numbers of the jerseys being orange (and we notice Wayne Gretzky's 99). However, for the scenes involving the actors/players, their numbers are black, and the ads on the boards are completely different.