 The scenes that took place in 1979, i.e. Trudeau leaving the House  of Commons after resigning as Liberal leader, the news conference  after he came back, and his being congratulated by the faithful  after the news conference were all shot in the Centre Block of  Parliament Hill on Sept. 11th, 2001. When cast and crew arrived that  morning it was a bright sunny day, with Parliament Hill swarming  with tourists. By mid afternoon the tourists were gone and  Parliament Hill had been sealed off by the RCMP. Filming was allowed  to continue inside the now empty building, but the RCMP would not  allow any exterior filming.