8 Details You Didn't Know About 1917
7. 1 Mile Of Trenches
There were about 5200 feet of trenches dug for the film, which equals around a mile in length.
To put that in perspective there were about 43 and a half miles dug for every minute of the movie's 119-minute runtime. That is a whole lot of digging, especially when considering how much of the movie that isn't set in or around a trench.
Here is One Mile Scroll for comparison. Just imagine digging through dirt instead of scrolling.