Other mistake: The shot of Big Ben destroyed by lightning looks strangely like the Big Ben exploding in the film "Mars Attacks" (1996).
Suggested correction: Whether or not it is the same footage or just similar, it's not a valid mistake as there no continuity or factual errors involved, etc. It's trivia at best, if the two films can be tied together and there's documented reports of someone involved in the films admitting the footage was reused.