We blog about bikes quite a bit, but sometimes you have to be a nut to get through high speed urban traffic. In an effort to improve cyclist visibility the Transportation of London has put forth an ad campaign to bring attention to the issue. The first was a widely played video about a basketball team and a dancing bear. We all watched — then watched a second time and laughed. Next up, they’ve really out done themselves with a classic whodunnit? tale. Its like gymnastics in cinematography. Really amazing how they pull this off. Have fun with this video and few more that basically let you play “spot the differences” like the old Highlights magazines.