The 'Star Wars: The Force Awakens' Premiere Could Be the Biggest Hollywood Has Ever Seen

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The Star Wars: The Force Awakens red carpet premiere on Monday has the potential to be the biggest one in Hollywood history. While most of the specifics have been kept under wraps, ET has dug up a few details.

Preparations for the event began on Friday when crews shut down a chunk of Hollywood Boulevard near the TCL Chinese, El Capitan Theater and Dolby Theater, where the premiere will be taking place. Security will reportedly be boosted to Oscar night levels with uniformed officers patrolling the four-block stretch.

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ET has learned that all the film's stars will be there, including original cast members Mark Hamill, Carrie Fisher and Harrison Ford, and that celebrities are being asked to wear "Star Wars-chic" attire.

Since the first public showings of the seventh installment of Star Wars don't come until Thursday, the filmmakers are asking that everyone at tonight's premiere "refrain from revealing spoilers and detailed story points."

When ET interviewed star Lupita Nyong'o earlier this month, she wouldn't even divulge whether she had picked out her dress or not.

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"Maybe," she said with a coy smile.

Star Wars: The Force Awakens opens Friday, Dec. 18.