Why does that lady in the subway give Thor the wrong directions to Greenwich in his The Dark World movie?

The bullshit "three stops from Charing Cross Station" line bothered me when I first saw the film... and it really bothers me whenever I re-watch it on video. Like tonight. I can only imagine how badly it pisses off a Londoner. I mean, sure, it would have sucked to say "YOU CAN'T GET THERE FROM HERE, GOD OF THUNDER! YOU NEED TO TAKE THE DOCKLANDS LIGHT RAIL BY SWITCHING TO THE JUBILEE LINE!" or whatever (I think that's how I got there when I went). But wouldn't that be better than forever having the distinction of being known as a writer who didn't bother to take two minutes to look at a frickin' London tube map?

Don't make Thor angry. You won't like him when he's angry.

And angry is what he would be if he were to find out that he was lied to about how to get to Greenwich.

Next up? Where was Captain Britain when London was being torn to shit by the Dark Elves?