The streets change from bone dry to soaking wet and raining when Jef flees from the female undercover cop in the Paris Metro.
When rounding up suspects the inspector refers to the population as 10 million. The 1968 population of Paris city proper was only 2.6 million. The population of the urban area was only 8.2 million.
It cannot be expected that every person would know the precise population of the city or town where they work. Rounding up to 10 million from 8.2 million is not a "Goof".
It cannot be expected that every person would know the precise population of the city or town where they work. Rounding up to 10 million from 8.2 million is not a "Goof".
(at around 1h 9 mins) The shadow of a boom mic is visible in the mirror, when Le Commissaire and his associates search Jane Lagrange's apartment, just after the point when Le Commissaire posits that Jef was not in Jane's apartment for six hours).