I've never seen it, though I'd love to. It was filmed partly in Hertfordshire. In particular, the Ayot Greenway, a bike path following an old railway branch line between Wheathampstead and Ayot St Lawrence, which I used to ride along on bike rides occasionally, became a fake railway line, with wooden rails and sleepers. If I ever get a chance to watch it, I will look out carefully for that bit. I have seen 'Saving Private Ryan', also filmed partly in the area.
About the local filming, including photos of the fake railway line.
https://www.hertsmemories.org.uk/content/herts-history/towns-and-villages/wheathampstead/ayot-st-peter-and-the-band-of-brothers