LOS ANGELES – Film fans finally will learn who’s competing for this season’s Academy Awards. Now all we need to know is whether any nominees will turn up for the big show amid a writers strike that has thrown the awards season into turmoil.

The list of Oscar nominees Tuesday is expected to include such luminaries as Cate Blanchett, George Clooney, Daniel Day-Lewis and Angelina Jolie.

That smattering of talent alone would ensure that a lot of people at home would tune in to the Feb. 24 ceremony. But without the cooperation of the striking Writers Guild of America, celebrities might honor the union’s picket lines and stay away from the Oscars, leaving the show’s planners to either scrap the telecast or come up with some new form of Oscar ceremony unlike anything audiences have seen before.

The word around Hollywood is that the Academy of Motion Picture Arts and Sciences has a backup plan to put on the show without the blessing of writers and stars, but they declined to disclose details.

Oscar planners simply say they are moving ahead with the show as planned.

“We are planning to have our show on Feb. 24 at the Kodak Theatre with an audience of 3,300 people and a television audience significantly larger than that,” academy spokeswoman Leslie Unger said.

Next to the Super Bowl, the Oscars are the most-watched annual broadcast in the United States. Last year, 40.2 million Americans tuned in to the Oscars.

The writers strike already took down Hollywood’s second-biggest film honors, the Golden Globes. With the guild planning pickets outside and declining to let writers work on the show, stars fell in line and refused to attend.

The swanky, televised Globe banquet was scrapped and replaced with a news conference to announce winners. No one showed up to accept awards in person.

If the Oscars were forced to go ahead with a show boycotted by nominees, a winner’s name may not be preceded with the traditional phrase, “And the Oscar goes to …”, but something more like, “And we’ll be sending over a courier to leave the Oscar on the doorstep of …”

Academy executives and ABC, which airs the Oscars, hold out hope the strike might be over before the awards. If not, guild leader Patric Verrone has said the union also will not allow writers to work on the Oscars.

Writers walked off the job Nov. 5 because of their share of potential profits from programming on the Internet and other new media. Awards shows have become key ammunition for the guild to try to bring producers back to the table after negotiations broke down Dec. 7.

Yet the Academy Awards are a big step above the Golden Globes and other honors jeopardized by the writers strike, so some in Hollywood think the guild might relent and let the Oscars go on as planned if the strike lingers until then.

“It would be in the writers’ best interests to come to some kind of resolution, if only temporary, so the awards could go on,” said Richard Zanuck, producer of Oscar best-picture winner “Driving Miss Daisy” and the recent Golden Globe winner for musical or comedy, “Sweeney Todd: The Demon Barber of Fleet Street.”

“Canceling the Academy Awards is something almost too big to contemplate. Any sympathy toward them in my estimation would evaporate.”

Potential Oscar nominees include “Sweeney Todd” stars Johnny Depp and Helena Bonham Carter, along with the film’s director, Tim Burton.

Among others in the running are Clooney for the legal drama “Michael Clayton,” Day-Lewis for the oil-boom epic “There Will Be Blood,” Jolie for the terrorism saga “A Mighty Heart” and Blanchett for the Bob Dylan tale “I’m Not There” and possibly the historical pageant “Elizabeth: The Golden Age.”

Javier Bardem is considered a potential supporting-actor front-runner for the crime saga “No Country for Old Men,” which also is expected to earn a directing nomination for Ethan and Joel Coen.

Comparative unknowns also are likely to factor into the mix, including Ellen Page for the teen-pregnancy comedy “Juno,” Nikki Blonsky for the musical “Hairspray” and Marion Cotillard for the Edith Piaf tale “La Vie En Rose.”

While everyone finally will know who’s nominated, it’ll take awhile to get a sense of who might show up, both among contenders and other celebrities attending the show. The academy sometimes begins disclosing awards presenters well before the nominations come out, the deluge of announcements providing steady publicity as the show approaches.

A year ago, the academy did not begin making announcements on celebrity presenters until after the nominations. But two years ago, a handful of celebrity presenters were disclosed during the buildup to the nominations, among them Jamie Foxx, Hilary Swank, Tom Hanks and Jennifer Aniston.

Academy spokeswoman Unger said Oscar talent bookers are in talks with stars to appear on the show.

It’s uncertain when any of that talent will be firmed up and announced, though.

For now, the academy is proceeding as usual. Gil Cates, producer of the Oscar telecast, has said the show will come off no matter what, though he would not provide details of how the ceremony would proceed if writers and stars do not cooperate.

“Or is this the equivalent of Nixon’s secret plan to end the Vietnam War right after the elections, then we found out there was no secret plan?” asked Tom O’Neil, a columnist for the awards Web site theenvelope.com.

O’Neil was skeptical that the Oscars would get some last-minute deal from the guild so the show could go on. The guild has signed agreements with smaller shows such as the Screen Actors Guild Awards and the Spirit Awards honoring independent film but “they’ve gone after the biggies with ferocity and no mercy at all.”

“It’s clear that they have the Oscars in their sights next,” O’Neil said. “Just because the Oscars feel they’re special because they get treated like superstars doesn’t mean anything. There’s no star treatment here for the ultimate show in show business.”