That was a bit of an assault on the eyes and hard to take in, but I liked the larger ones they had in the corridors with the ornate framing around them:
I thought the next ad looked a little like a black and white version of the ad for Derailed, with a man and woman in the foreground and the subway scene beneath.
But it's for a film called Renaissance and is set in Paris in 2054. Quite a stylish looking animated black and white film which reminds me slightly of the animation in Sin City.
Finally when leaving Paris and travelling to Gare du Nord, I got onto a high speed train that wasn't part of the Metro but still runs through Paris.
It's one of those "monster" three story trains, where you can go upstairs or in a "basement" section below platform level too.
I went upstairs as it was the only place to get a seat. It all felt a bit weird, travelling at such a high speed, looking down the stairs and holding onto my luggage hoping it wouldn't topple down and hit the people below me.