something weird
Well, better have your DVD close. This movie was filmed entirely in Canada, according to imdb, right? Now, grab your copy and fast-forward to 1:11:55 (assuming you have the PAL version, 25fps). What do you see? Tadaaaa, it's...Chicago!!!Willis Tower (formerly Sears Tower), also 311 South Wacker Drive a little bit to the left, etc.
Why they still bother to mention the filming locations ? It's not the first time I noticed that.
Avoid the hangover, stay drunk.