How far is Winnipeg from Montreal?

The answer is 1424 miles. At least according to Alfred Hitchcock's The 39 Steps. Something we learn on the very first scene, set in a music-hall. In the movie adaptation, Richard Hannay is no longer a Scottish returning to the UK from South Africa, but a Canadian, probably because John Buchan who of course wrote the original novel was then General Governor of Canada. It felt strange and actually quite pleasant hearing my city being mentioned (I mean Montreal of course, not Winnipeg) at the start of the film, and in a Hitchcock movie on top of that.