Goofs

While Dicky is walking to Charlene's house the sweat on his shirt disappears and reappears between shots.

When Dicky is running in the prison yard he appears to have a full head of hair, whereas in the rest of the movie he has a noticeable bald patch.

When the family is all gathered in the living room, there is a Rock 'Em Sock 'Em Robots sitting on the end table next to Micky Ward. Then it's gone when they cut back to him. Then it's back, then gone again.

In the first round of the last fight, Micky Ward has blood running down his face. When the round ends, on the way to his corner the blood is gone.

In a montage, Ward is shown fighting boxers named Manetti, Collins and Hernandez. In real life, Ward never fought anyone by those names.

In real life, Micky Ward was never knocked down during the fight with Shea Neary.

Both Micky Ward and Dicky Eklund appear together in court before Dicky goes to jail for multiple serious charges. In reality, Micky was arrested while interfering with the arrest of Dicky, who committed a relatively minor offense.

During the Shea Neary/Micky Ward fight, the boxers were weighed in at "10 stones 6 pounds" each. 10 stones equal 140 pounds. That would make them both Welterweights. In reality, they fought at Junior Welterweight (limit of 140 pounds). At the actual weigh in in 2000, Neary weighed in at 139 pounds and Ward at 140 pounds, the limit for Jr. Welterweights.

In real life, Alice Ward was not present at Micky's fight with Shea Neary.

The song "Strip My Mind" by Red Hot Chili Peppers from 2006 is played during the montage of Micky's training and Dicky's prison stay. It's only incidental music, and not heard by the characters in the story.

In the opening scene where Dicky Eklund and Micky Ward are walking through the streets while getting filmed, one of the onlookers has a tattoo with the 'new' NE Patriots logo. While probably an error, this logo was first used in 1993, the year this scene takes place in.

Micky Ward does not have any tattoos throughout the film. However, one of Mark Wahlberg's tattoos (of Bob Marley on his left bicep) can be seen briefly under his shirt when he wakes up and stretches.

During the last fight scene, his trainer keeps putting ice on Mickeys right cheek. But when the fight is over, when he is in the locker room, there are 2 bandages on his left cheek.

After Micky loses to Mike Mungin, which took place in 1988, he takes his girlfriend Charlene to see the film Belle Epoque. Belle Epoque was not released until 1992.

Micky Ward's fight with Alfonso Sanchez is depicted here as leading directly to the Shea Neary fight. It actually took place nearly three years earlier, with Ward losing twice in the meantime.

The song "The Warrior's Code" by Dropkick Murphys is played when Micky Ward enters the ring before a match against Sanchez. The song, which did not come out until 2005, is about Micky Ward.

When George Ward drives up to Charlene's apartment in his work truck when all the girls are fighting on the porch, you can see a 2011 vehicle inspection sticker in the bottom corner of his windshield.

When Dicky Eklund is released from prison (1998) and returns to the training center holding his son, the son sings "Ice Cream and Cake" (1999) by the Buckwheat Boyz.

Micky Ward is introduced before a fight as having 20 KOs. He defeats an opponent by KO, and then is introduced for a later fight as having only 20 KOs instead of 21.

During Micky's fight with Neary, the ringside announcer calls at least two of Micky's punches left hooks, when they are clearly uppercuts.

A sign on Charlene's apartment house warns that "Violaters [sic] Will Be Prosecuted."