Valerian and the City of a Thousand Planets
It's a fun movie, but it's not what I would call a sci fi classic. It's all spectacle, with eye popping visuals. It creates some really interesting side characters and alien worlds. The drawback is the two leads. They seem rather bland and one dimensional. Their romantic bantering is quite boring. The supporting characters are more colorful and interesting. If you are a fan of Luc Besson's The Fifth Element, you will probably enjoy this. Just don't expect anything too deep from this movie.