(at around 51 mins) When Simon hands Paz the duchess's diamond jewelry, she is seen putting on the bracelet, but the necklace appears on her neck instantly as the shot changes.
(at around 17 mins) When Fidel suggests to Germán to make an application that calculates the approximation to the number pi, at the beginning of the sentence his lips do not match what is heard for a split second.
(at around 53 mins) When Soraya is telling Chema that she is going to spank him, her lips do not move during the brief shot in which she is seen from behind.