Qype User (.
Yelp
The appropriately-named Grand Rex is a lot of things. Here at 1 Poissoniere it's a grand old theatre, holding a couple of thousand seats for watching concerts. It's also got screens for films. Just a few steps down the road, at number 5, there's also a nightclub (http://www.qype.co.uk/place/80658-Rex-Club-Paris) . And a little farther down is a bar (http://www.qype.co.uk/place/preview/fr-796384-rex-bar-le-paris) .
But the theatre is beautiful. Holding about 3000 people in several steep tiers, it's plush, old, and ornate. North African frescos cover both side walls. The ceiling, high above, is deep azure with a few starry pinpricks of light. The stage looks like thousands of combined years of struggling showbiz have strode across them. It's old, but that feels right.
There are escalators to take you to the upper levels, and bars on each level.
I've just come back from seeing Tom Waits play the Grand Rex, so perhaps I'm still feeling the effects. But I get the feeling that this rich, velvet, burgundy old hall gives a little magic to whomever plays there.