Continuity mistake: When Rudy reach out his hand and introduces himself to Jack, we see Jack holding his hands down. When it cuts he has his left hand by his mouth. (00:17:35)
Continuity mistake: When Tifa first shows up to the scene at the ShinRa Monument, she looks over to see Denzel standing and her hair has fallen over her shoulder. When it cuts to a closer shot of Denzel (still over Tifa's shoulder), her hair instantly moved back.
Continuity mistake: During the final rave scenes, just before the group enters the rave, Jenny is given a regular sized revolver. When she finally shoots Jeremy in the head, the revolver she takes from her pocket is much smaller than the one she was given.
Continuity mistake: Julian and Becky get to school and see one of their friends sparring a bit. His ex Katie arrives and he tries to kiss her. She pushes him away and then grabs again the strap of her bag, but at the cut she is not holding it anymore. (00:11:50)
Continuity mistake: Major Kang Min-gil in the opening meeting stands up and mentions the meeting when both North and South Korea agreed to build a nuke. The female scientist in the wide shot is leaning with her chin on the back of her hand in the wide angle, but at the mid-sentence cut she has the palm of her hand along her cheek. (00:04:35)