Visible crew/equipment: After they run out of snowballs because Jack scrapes ground, the bullies recover and prepare to chase the boy. To the right on the ground, the shadow of a crewmember moving can be seen when we see them getting back up.
Jack Frost (1998)
1 visible crew/equipment mistake
Directed by: Troy Miller
Starring: Michael Keaton, Kelly Preston, Mark Addy, Joseph Cross
Continuity mistake: After Jack dies his son is making a snowman that later becomes his dad . You briefly see a scarf around the snowman. A little after that he puts the same scarf on the snowman.
Jack: My balls are freezin! I never thought I'd say that with a smile on my face.
Trivia: You may notice that the snowman looks a little familiar, but doesn't quite look like Michael Keaton. This is because originally, George Clooney was supposed to star in the film, and the snowman was designed to look subtly like him. Clooney dropped out at the last minute and was replaced by Keaton, and the effects teams didn't have quite enough time to totally redesign the snowman. (They only had time to make a few minor tweaks, like his eyebrows).
Answer: Wire Fox Terrier.
Bishop73