Acclaimed filmmaker Christopher Nolan discussed his upcoming sci-fi movie, “Interstellar,” at CinemaCon, an annual gathering of theater owners in Las Vegas.

In a Q&A session moderated by The Hollywood Reporter's film critic, Todd McCarthy, on Wednesday, Nolan said that his latest project was a tribute to the movies he watched in his childhood.

“For me it's about harking back to films I saw when I was a child," Nolan reportedly said. "I grew up in an era that was the golden age of the blockbuster, where something being a family film could be very broad and universal. I feel like that is something I want to see again. Something that looks at where we are as people and where we might go."

Nolan said that his upcoming movie was about “interstellar travel” and it was co-written with his brother and frequent collaborator, Jonathan Nolan, with whom he has previously worked on “The Dark Knight,” “The Dark Knight Rises” and “The Prestige.”

Nolan, who filmed "Interstellar" in 35mm and IMAX, reportedly said that he preferred film to digital. He said that he considered film to be the best way to capture images and project them adding that he would always be in favor of technological innovations, “but it will always have to exceed what came before. None of the new technologies have done that.”

He reportedly also said that he was not a fan of 3D. According to him, it "gives a much more individual feeling for a screening" and "it's not the best thing if you're looking at a shared audience experience." But, he liked Baz Luhrmann's 3D film, "The Great Gatsby, because it created "an atmosphere that washed around you."

He went on about “Interstellar” saying: "The technical aspects are going to be more important than any film." In addition to shooting it in IMAX, the film has a "very ambitious sound mix," he said.

Nolan said that this was a film in which he tried using as many real environments as possible rather than altering it with CGI in post-production.

"We shot it like a documentary," he said. "I think it paid huge dividends for actors.... Though it put a huge burden on our visual effects guys to be well ahead."

"Interstellar," which stars Matthew McConaughey, Anne Hathaway, Casey Affleck, Jessica Chastain, Bill Irwin, Matt Damon, Michael Caine and David Oyelowo among others, is slated for a Nov. 7 release.