Revealing mistake: After Carmen rescues Juni, as they fly over the city she says, "Hang on butterfingers." In the following close-ups, where is the handcuff with the broken chain on Juni's wrist? He is not wearing it on either wrist in any of these close-ups. It's obviously back in the following shots. (00:41:45)
Visible crew/equipment: When Gregorio slams on his brakes the car stops alongside the sidewalk, in front of the private school. In the next shot he calls out, "Juni, Juni!" as Juni stands by the open car door. First, a large boom mic and the reflector screen are wonderfully reflected in the car window, before he closes the door. Then when Juni closes the door, a car is reflected on the door, though it is impossible for it to be there since a gate, which is visible in the following shots, stands at the edge of the sidewalk on the car's left side. Some crew members, one of which is behind camera equipment and another holds the boom mic pole, are also reflected in Gregorio's door on the left. Then as Juni walks away, the boom mic moves back and forth in the reflection near Gregorio's face to pick up the actors' audio. (00:11:05)
Continuity mistake: The handcuff with the broken chain that is stuck on Juni's wrist, actually changes its position to the opposite way, while on the same wrist, in some shots the single bar faces out and in others the double bar faces out. For example, when Juni speaks into his watch and says, "I'm toast!" the double bar faces out, yet in the park when Juni spins as robo-Carmen approaches him, the single bar faces out. (00:41:00 - 00:48:10)
Visible crew/equipment: After Carmen uses Machete Bubbles to shock the four Thumb Thumbs, she and Juni drop down on the wires. A pair of hands are actually visible at Carmen's back, as she begins her descent, but they were alone up there! (01:02:10)
Visible crew/equipment: When Ingrid sits at the vanity table in the bedroom, in the shot just after Gregorio's screen reads, "Type password," but just before the close-up of Ingrid's fingers typing on her makeup, there is a lovely reflection of a crew member behind the camera, which is perfectly clear in the mirror to Ingrid's right. (00:07:30)
Visible crew/equipment: Machete shows the mini spy plane to Carmen and Juni, and when he says, "It's built for one passenger..." visible in the plane's window, standing beside Carmen, there is a perfect reflection of a crew member holding the large white reflector screen, just out of camera shot. (00:54:35)
Deliberate mistake: After Carmen rescues Juni on the boat/sub, he accidentally re-engages the autopilot and they submerge. In the next shot as two Thumb Thumbs jump off their speedboat, the name, 'Donzi', that is written across the side of the boat, is backwards. This shot is flipped. (00:24:10)
Visible crew/equipment: When Ms. Gradenko tugs on the backpack that Juni holds, and yells, "You little brat!" a crew member's hand, wearing a silver ring, pulls on Juni's right shoulder! (00:39:40)
Continuity mistake: When Ingrid and Gregorio are tied up at Floop's castle, the amount of rope wound round Ingrid differs from shot to shot. First there are seven strands, then six, then five - which is the first shot as the laser cuts, and all are not aligned straight. Then, in the last shot, as the laser still cuts through in the extreme close-up, there are six strands again which now lie perfectly! (00:29:30)
Answer: When he told her that he knew about her still wearing diapers. He did it to get back at her for being so mean to him and they decided to call it even.