Continuity mistake: Tony Trihull appears when Finn McMissile begins chasing Professor Z. It also shows when Tony uses his magnet. When it is used, Finn's equipment are pulled by the magnet, which includes his bullets. Those bullets are black when all of them were going out. However, when they are pulled onto the magnet they are grey.
Cars 2 (2011)
Plot summary
Directed by: John Lasseter, Brad Lewis
Starring: Michael Caine, Owen Wilson, Emily Mortimer, Larry the Cable Guy
Four time Piston Cup winner Lightning McQueen is strongarmed into entering the World Grand Prix by his best friend Mater, against the reigning champion Francesco. The race is unique in that all cars are running on Allinol, an alternative fuel that is 100% natural. However, cars running on Allinol are mysteriously breaking down mid-race. Secret agent Finn McMissile is sent in to investigate, along with rookie agent Holly Shiftwell. When their contact is forced to hide his information, he picks the most unlikely hiding spot: To-Mater.
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More mistakes in Cars 2
Finn McMissile: My apologies, I haven't properly introduced myself. Finn McMissile, British intelligence.
Mater: Tow Mater, average intelligence.
Trivia: During the last race in London, Lightening passes by a sign that is advertising Lassetyre. That is a shout out to John Lasseter one of the directors of the movie.
Answer: They heard him recording the message to Finn and found his words suspicious.