LOS ANGELES -- Director Alejandro Inarritu says the only way to communicate the struggle between a celebrity and his ego in "Birdman" was through long, uninterrupted shots that move at the pace of life.

Those sweeping takes -- the subject of much discussion this Oscar season -- are intended to mimic the way people see the world, he says: "We open our eyes and go with a Steadicam all day, and we can't escape."

"When we get up, there are no edits," the filmmaker said. "The only time our perspective is edited or cut is when we tell stories -- fiction -- or experience a memory from our lives. But in reality, our lives are -- absolutely, all the time -- only linear. They move in only one direction."

Inarritu felt he had to capture that sense of movement and bring viewers inside the characters' perspectives to express such a personal, internal notion as ego. His creative storytelling and esthetic, where the whole film appears to be one continuous shot with no edits, led to nine Academy Awards nominations Thursday, including best director and best picture -- a heady experience for even the most in-check ego.

"Birdman" stars best actor contender Michael Keaton as Riggan Thompson, a once-popular action star trying to prove his artistic merit by mounting a Broadway play. Emma Stone is his insightful, dispassionate daughter; Ed Norton his cocky stage colleague. Both Stone and Norton earned supporting actor nods for their roles.

Emmanuel Lubezki, nominated for his thrilling cinematography, carries viewers through the action: up stairs, down hallways and through windows. He called the photography "an experiment that thankfully turned out well."

So how'd they do it? Inarritu won't say exactly.

"I would prefer to have the rabbit in the hat," he said, but added the approach inspired the actors and made him "more honest" as a filmmaker.

What we do know is those fluid, single-camera shots required pacing and tone -- elements that would typically be manipulated in post-production -- to be thoroughly addressed ahead of time. Instead of multiple takes, there were multiple rehearsals.

"I needed a meticulous exploration of every word, every step, every movement, every look of actors to define where that camera will be and where it will come," Inarritu said. "So we got (the cast) together with much more time to explore dramatic objectives and to understand what the characters wanted, needed and how they will get it."

The long rehearsal period allowed the actors to "own" their characters and their words, he said. Once shooting began, it was like "an endless spaghetti that cannot be cut."

The Mexico-born director's past credits include more serious-toned fare such as "21 Grams," "Amores Perros" and the Oscar-nominated "Babel," but he was moved to explore the human condition of ego through a comedic lens.

"I wanted to approach with some humour -- not irony, not cynicism -- but just literally try to see those tragic facts of life, of our lovely and pathetic reality as human beings," he said.

He wanted to explore the fight within the self over ego -- Who am I? Who should I be? -- as it relates to the classic debate about art: whether prestige or popularity matters more.

Now, with nine Oscar nominations, is Inarritu concerned his ego could sprout wings?

The 51-year-old said he tries to resist allowing industry recognition to make him feel like a winner or loser, but is grateful for the support and hopes it brings more viewers to "Birdman." Just making the film feels like a victory to him.

"The moment you present something and create catharsis in the people, you have done something that has an effect emotionally, and that's artistic already, no matter if the people consider it good or not," he said. "That is something that is not easy, and I feel proud about that."

Then, Riggan's voice, or maybe Birdman's, creeps in.

"At the same time, the delusional ambition of artists thinking that we have an impact that will change the soul of humanity and transcend time and eternity, it's an intellectual masturbation that I find tragic and comic at the same time," Inarritu said. "It's, you know, Who cares?"