Member of the production team here, writing in:
A little history for you wrote:
Brutus Hamilton, the famous track coach at Kansas and Cal and for the US Olympic team, wrote a paper in 1935 called "The Ultimate of Human Effort" in Amateur Athlete where he tried to predict the fastest 100m possible, the longest javelin throw, etc. For the mile Hamilton predicted the fastest humanly possible time was 4:01.6.
Yes! We even managed to track down headlines referencing Brutus Hamilton's prediction (among others) to include in the movie.
Bad Wigins wrote:
Nobody thought it was impossible. Hägg would have had it years earlier if he hadn't been banned as a pro. But more importantly, nobody thought it was a really big deal, until the PR blitz for Bannister convinced an ignorant, gullible public that it was.
I actually agree that the "impossibility" of the task seems a little overblown, and we try to offer context in the doc. We include John Landy saying point-blank that if not for World War II, the four-minute-mile might have been run years earlier. But when a decade passes without the record being lowered even a tenth, it invites very real questions of if/when the record could be broken again. Because the Swedes were so close, many papers wrote that it was theirs for the taking... so then, when they didn't do it -- for whatever reason -- what were people left to think, rightly or wrongly?
The four minute mile had a lot going for it, in terms of interest and hype: speculation about whether it was physically possible, the perfect symmetry of the record, and a chase that involved three very different personalities on three different continents... plus a post-war Great Britain that was hungry for any sort of good news. Pretty much the perfect storm for generating interest.
We make sure to touch each of these angles in BANNISTER, and hope we can offer the fullest picture possible with our film. It's really exciting to see that people are as interested in this story as we are.