Revealing mistake: In the fight between Julie and Ned, when she does the last kick to take him down, it's obvious that she doesn't actually kick him.
Revealing mistake: One of the monks bowls a gutterball which jumps out at the last second to become a strike, but as it does the 10 pin begins falling before the ball contacts any of the pins.
Revealing mistake: When the monk bowls the gutterball, you can see a lever pop out in the gutter and guide the ball back onto the alley.
Answer: Likely the filmmakers deliberately changed the plot details to fit the new storyline, either hoping or not caring if the audience noticed. It's not uncommon for films to do this in sequels.
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