Revealing mistake: When Mater and Holley are talking in the corridor, Mater's reflection is cast on the wall, but Holley's reflection isn't. (00:29:55)
Cars 2 (2011)
1 revealing mistake - chronological order
Directed by: John Lasseter, Brad Lewis
Starring: Michael Caine, Owen Wilson, Emily Mortimer, Larry the Cable Guy
Plot hole: There is no reason for there to be sinks in the bathrooms. The cars may be able to use sinks just as they use toilets, but in the bathrooms they are too small and too inaccessible for any use.
Finn McMissile: Siddley. Paris, tout de suite.
Mater: Two of them sweets for me too.
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.