In reviewing this movie, I have to admit my personal bias as a Canadian living in Ottawa where the movie was shot. I had seen it many years ago and liked it so I was excited when it was shown on TCM on Easter eve. I had forgotten many of the scenes, although I know the story well. I appreciated the crisp cutaway shots of Ottawa with Gothic public buildings and brick houses shown against the stark winter backgrounds. I also liked the way the movie was shot in darkness and shadows evoking the Cold War atmosphere. Director Wm. Wellman got the details correct with his script and the visual references to Ottawa landmarks. The Justice Building is the actual Confederation Building still used by the Dept.of Justice. The railway shown running along the Rideau Canal is no longer there but that was the location used by trains in and out of Union Station in downtown Ottawa. The actual apartment where Gouzenko lived is shown. It still stands along with the park across the street where there is signage indicating the historical significance of the site nearby. We also see Somerset St. with a streetcar passing the building where he resided. The Parliament Buildings, the Château Laurier and the National Research Council are all shown and all were pivotal locations for the story. There is a reference to the child of Igor and Anna Gouzenko born at St. Vincent's Hospital, which still stands in the neighbourhood where Gouzenko lived. I like the documentary style also used effectively in other films from that era, such as The House on 92nd Street, Naked City and the Wrong Man. The film noir look is typical of the era and suits the espionage story. Where the movie falls short, however, is in the characters of Igor and Anna Gouzenko as performed by Dana Andrews and Jean Tierney. I can certainly respect the choice of two accomplished actors for the roles; however, these Hollywood icons are a stretch for the Russian couple in the story, especially for a movie that pays such close attention to other details. Nevertheless, I can see that two acting stars would attract attention to the movie and the story. For example, a Cold War museum outside Ottawa, built as a bunker for government leaders in the 1950's, features photos from the movie to highlight the story. As someone with a passion for Canadian history and movies, I have great affection for The Iron Curtain. I was very grateful for TCM bringing this little known movie to its viewers.