Continuity mistake: During the dance fight towards the end of the movie between Gru and Balthazar Brat the guitar/piano/laser thing swaps from a right-handed item to a left-handed one when Gru gets it.
Despicable Me 3 (2017)
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Directed by: Pierre Coffin, Kyle Balda, Eric Guillon
Starring: Steve Carell, Steve Coogan, Kristen Wiig, Jenny Slate
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More mistakes in Despicable Me 3
Lucy Wilde: Agents Grucy are closing fast!
Gru: Yes! Wait, whaa? What did you call us?
Lucy Wilde: Grucy. You know, Gru and Lucy mushed together - Grucy.
Gru: I like it, but not a lot. I don't like it.
Trivia: Due to Elsie Fisher getting too old to voice Agnes, Nev Scharrel was chosen to replace her.
More questions & answers from Despicable Me 3
Answer: I'm going to assume you haven't watched the entire movie. There is a scene in the movie when all minions abandon Gru due to Gru not being willing to return to his prior lifestyle of being evil and committing crimes.
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