You can turn a page, change a channel or close a window on your computer, but you can't erase a billboard from a landscape. This Space Available is a captivating documentary that takes us to several of the world's greatest cities including Toronto to explore outdoor advertising's proliferation and dire lack of regulation. The film considers the blurry line dividing art and ads, questions the economic viability of billboards and asks: at what point does advertising become visual pollution? It also shows how ordinary citizens combat the excesses of advertising some legal, some not so much. Either way, the film proves we shouldn't remain passive recipients to the hard sell.