Filmed in Paris, London and St Petersburg (thanks for the heads-up to Fran-Ikarus).
This unidentified coach is seen in Paris:
In London we see the front of Arriva London VLW132 (LJ03MHE), a 2003 Wright-bodied Volvo B7TL, and in the distance a similar bus:
Star Romain Duris travels twice in AEC Routemaster RM70 (VLT70), by then in preservation:
Seen through RM70's front windscreen is another Routemaster, branded for route 12:
Also seen in London is R904YBA, a 1998 Volvo B10M with Van Hool body new as Shearings 904:
In St Petersburg, we see several trams, including 3071, 1020 and 1037....
....and twilit trolleybuses: