Continuity mistake: In the last scene where Sing is fighting the Beast, Sing does the "Palm Move" on him. In one shot there's a close up of Beast with the hole of Sing's hand print in the building to his left, in the next shot Sings' hand is actually to the Beasts' right.
Continuity mistake: When Sing's chunky sidekick falls asleep, (after getting his hair cut) his head falls straight back. (close up shot) Cut to a wide shot and his head is tilted to the right instead.
