a spatio-temporal agent, and his redheaded female colleague, Laureline, as they travel the universe through space and time. Valérian is a classical hero, kind-hearted, strong and brave who follows the orders of his superiors even if he feels, deep down, that it is the wrong thing to do. On the other hand, his partner Laureline combines her superior intelligence, determination and independence with sex-appeal, making her one of science fiction's most notable heroines. Influenced by classic literary science fiction, the series mixes space opera with time travel plots. Christin's scripts are noted for their humour, complexity and strongly humanist and left-wing liberal political ideas while Mézières' art is characterised by its vivid depictions of the alien worlds and species Valérian and Laureline encounter on their adventures. The series was a landmark in European comics and pop culture, and influenced other media as well – traces of its concepts, storylines and designs can be found on sci-fi films such as Star Wars, The Fifth Element, and Avatar.