The Bicycle Film Festival comes to Boston this week, continuing its 17 city worldwide tour. Boston may not be the most bike-friendly city; riding bikes in Boston can be dangerous, even for the mayor. But many Bostonian persevere and do things like ride bikes to work anyway. The Bicycle Film Festival is for those people. It's an expression of the emerging urban bicycle culture and it features films from the likes of Jorgen Leth, Mike......