Haters gonna hate, but count me solidly pro-Valerian. Joyously imaginative science fiction. Not enough films revel in their world-building the way this one does. Showers of pearls, an inter-dimensional market, shape-shifting strippers, the city of Alpha itself!
Sure, DeHaan is the weak link but Delevigne shines as Lauerline (this really should have just been called Valerian and Lauerline). She's charming, fresh-faced, and cool/gorgeous. Erases her weak turn in dreck like Suicide Squad from my mind. I think she has tons of potential as an actress.
Also, emotionally/thematically, Laureline's final love speech broke through my temperamental cynicism. I found it genuinely moving.