This deep dive into the creative process on Valerian gives away some significant plot details. We learn that Valerian and Laureline are the grounded, human guides through this fantastical journey, on a case that takes them to Alpha, aka the City of a Thousand Planets. It’s there that they will allow Besson to take technology on a test run, showing off the worlds and creatures he is able to bring to the biggest screen possible. As he says, all of the knowledge of the universe in IN Alpha. It sounds like it has the potential to be THE tentpole environment of the summer.