Continuity mistake: After Jean Grey, Rogue and Wolverine locate Gambit's mini-jet, they land the Blackbird behind a row of plants. When they emerge from the Blackbird, the plants have disappeared. (00:08:55)
Continuity mistake: When Gambit pushes Bella Donna over, she is on his left, and there is a tree stump on his right (out of shot). When the shot changes, she is up against the tree stump. (00:14:25)
Continuity mistake: When Rogue flies back towards Gambit and Bella Donna, Bella Donna is standing behind Gambit. When the shot changes, Bella Donna is standing in front of Gambit. (00:15:35)
Continuity mistake: When the External is emerging from the water, the Thieves Guild's tithe box is missing from its respective tree stump. In the next shot, it is back in place. (00:16:30)
Continuity mistake: When the External states the Guild of Thieves have dishonored the tithe, both the Thieves' and Assassins' tithe boxes are missing from their respective tree stumps. (00:17:10)
Other mistake: Julianne Klemm, the writer for this episode, has her first name misspelled in the opening credits as "Julaianne." (00:02:07)
Continuity mistake: When the Danger Room monster has ensnared Cyclops, the slime coming off its tentacles is green. When the shot changes, the slime is orange. (00:02:18)
Revealing mistake: When Gambit bumps the toggle switch that increases the Danger Room difficulty, you can see it actually moves itself before his elbow touches it. (00:02:55)
Continuity mistake: When Gambit is asking why Cyclops wants his Danger Room session to be tougher, there is a microphone a few inches from his mouth. When the shot changes, the microphone has disappeared. (00:02:44)
Continuity mistake: When Gambit answers the phone, he brings it to his right ear with his right hand. When the shot changes, he is holding it to his left ear with his left hand, and he is also facing the opposite direction. (00:02:53)
Continuity mistake: In the flashback when Gambit runs up to two of his fellow guild members to tell them the others are almost there, he runs up to the one in the blue vest. When the shot changes, he is suddenly facing his brother Bobby. (00:05:21)
Continuity mistake: When the Danger Room alarm is beeping to notify Rogue that Cyclops is in danger, in the first shot, the control panel for the alarm consists of the screen and rows of buttons below it. When the shot changes, about half the rows of buttons have been replaced by what appears to be a phone. (00:03:57)
Continuity mistake: When the chosen one for the Guild of Thieves drops his tithe box, it lands on the inside of his right foot. When the shot changes, the box is suddenly equidistant between his feet. A couple of shots later, the box has moved away from him, resting next to the tree stump. (00:06:17)
Continuity mistake: When Bella Donna is being selected as the chosen one for the Guild of Assassins, she is flanked by three of her guild members. When the shot changes, the three guild members have disappeared. (00:06:49)
Continuity mistake: When Wolverine enters the infirmary, Cyclops is resting his right hand on his lower abdomen area with his fingers extended. When the shot changes, his hand is a closed fist and has moved closer to his chest. (00:07:37)
Continuity mistake: When Wolverine runs up to Gambit's mini-jet, he puts a considerable amount of distance between himself and Jean Grey, and nearly makes it all the way to the jet and Rogue before the shot changes. When the shot does change, he is suddenly several feet back from where he just was, and Jean Grey is now right behind him. (00:09:01)
Continuity mistake: When Bobby and Pierre enter the basement of the Thieves Guild's mansion, Bobby is on the left, and Pierre is on the right. When the shot changes, they have swapped places. (00:12:43)
Continuity mistake: When Bella Donna is saying the Assassins are prepared for the tithe, a man with long green hair is behind her on her left. When the shot changes, he appears to be standing between her and Gambit. When the shot changes again and Bella Donna is stroking Gambit's hair, he is nowhere to be seen. (00:14:16)
Continuity mistake: When Pierre is telling the Assassins that they betrayed the Thieves, he raises his left arm and points his finger at them, and then lowers his arm back down. When the shot changes, his left arm is raised again. (00:15:00)
Revealing mistake: When Bella Donna is preparing to shoot a blast of energy at Rogue, her body passes through the left hand of the man on her left that was holding her back. Half of her cloak then disappears as she strides forward. (00:14:42)
