For those having interest or curiosity in what was the real thing, this link might entertain you, one lap with Sir Stirling Moss in 1956, on board a D Type Jag':
https://www.youtube.com/watch?v=IpRFagIbcPE
Yes, roads were not closed, t'was for the pictures only. Compared to this, the LM 66 movie is rather Hollywood style. But I'm biased because I think Steve McQueen version was the best ever so far and some of my friends took part.