and Luca Guadagnino called him "one of the ultimate auteurs." Damien Chazelle said of Nolan, "This is a filmmaker who has managed, time and again, to make the most seemingly impersonal projects—superhero epics, deep-space mind-benders—feel deeply personal". Olivier Assayas said he admired Nolan for "making movies that are really unlike anything else. The way I see it, he has a really authentic voice." Discussing the difference between art films and big studio blockbusters, Steven Spielberg referred to Nolan's "Dark Knight" series as an example of both; he has described "Memento" and "Inception" as "masterworks". Denis Villeneuve said of Nolan, " is a very impressive filmmaker, because he is able to keep his identity and create his own universe in that large scope ... To bring intellectual concepts and to bring them in that scope to the screen right now—it's very rare. Every movie that he comes out with, I have more admiration for his work."