During LaFlamme's last goal Doug Glatt can be seen skating down the right wing even though he is in the locker room with Eva.
In the final game, after Xavier scores his third goal, when the bench is shown jumping with joy, Xavier is sitting on the bench pouting.
Before Doug's first fight (as a spectator), the hockey player that eventually enters the stands to fight him had gone to the penalty box with his helmet clearly removed. In the next instant (before he climbs over penalty box) it is back on and strapped in.
Ross Rhea is seen reading a magazine article with a picture of Doug Glatt fighting Huntington of the Albany Patriots, yet this fight hasn't happened yet, since the Patriots vs Highlanders game takes place in the next scene.
After the Steelers score a goal in Glatt's first game in Halifax, you can see the scoreboard over center ice during the next face-off. The score is displayed as 0-0. Also, there is only one second off the play clock (it displays 19:59) although the game has been underway for some time.
The two Russian players have the last name of Yakovlena, which is impossible since Russian surnames for men never end in -a. For instance, Maria Sharapova's father is named Yuri Sharapov. If anything, their last name would be Yakovlev or Yakovlen in real life.
When Ross Rhea is looking at the newspaper article "Ross Rhea's Swan Song", the name appearing on Ross Rhea's Jersey is "Ross", not Rhea. Last names are normally listed on sports jerseys, not first.
Doug comes out of a convenience store in Halifax carrying a case of beer. You cannot buy beer at convenience stores in Nova Scotia (or, for that matter, in Manitoba, where the film was shot).
The credit for MTL Tomahawk #1 is misspelled as Tomahawak.
About midway through, when Ross is reading the newspaper article about why he has to fight Doug before retiring, the phrase "the ultimate villain" is in the first paragraph, second sentence, of the second photograph. "Villain" is misspelled "villian."
Many of the fans in the stands are clearly cardboard cutouts.
Though the game shown at the beginning of the movie is between the Albany Patriots and the St. John's Shamrocks, the scoreboard displays the teams as Moose Jaw and Brandon. This scene was filmed at a Western Hockey League game at the Keystone Centre in Brandon, Manitoba. Also, the advertisements on the boards are for local businesses, including The Brandon Sun and Manitoba Telecom Services.
Halifax's home games were filmed at the PCU Centre (since renamed Stride Place) in Portage la Prairie, Manitoba. The PCU Centre logo can be seen on the scoreboard and there are several advertisements for Manitoba businesses with no connection to Halifax.
As Doug and Eva are supposedly walking down the street in Halifax, a street sign indicates they are on Valour Road, which is a street of historic significance located in Winnipeg.
Although taking place in Massachusetts, the opening bar scene shows taps from Okanagan Spring Brewery, giving away Canada as the filming location.
It is evident that the arena ice is not re-surfaced by the Zamboni prior to the start of the games and during intermissions.
During the videos of Ross Rhea's game leading to his 20-game suspension, sideways views show the end of his stick breaking off against the helmet of the opposing player; in front-on shots, the stick remains intact.
Around half way through the movie the highlanders backup goalie, Shea, is mysteriously replaced by a bald middle aged man, also by the name of "Shea"
The bridge over the railway yards in Orangetown is actually the Arlington Street Bridge in Winnipeg.
When the Highlanders' bus arrives in Quebec from Halifax, they should be traveling west or north, but the shadows of the signs show they are traveling east.
When Oleg and Evgeni are making fun of Belchier's Helmet/Mother, the back-up goalie has his leg pads on the wrong legs.
During the Halifax-Windsor game, the Highlanders have five skaters on the ice (with the goaltender still in) when the teams are supposed to be playing four-on-four.
Highlanders coach Hortense names Doug an Assistant Captain. The official term in hockey is Alternate Captain.
Dr. Glatt states that he might as well have "Security" on his sweater. The character is supposed to be an American, who would normally call it a jersey. Eugene Levy is from Canada, where it is commonly called a sweater.