Actress-director Demi Moore arrives at the 2009 Miami International Film Festival for the screening... 
(Jemal Countess/WireImage/Getty Images)
Twitter also did not immediately respond to requests for a comment regarding the incident.
Moore is the latest celebrity to make news via Twitter. A fashion designer filed a lawsuit against Courtney Love last week, claiming the rocker used the micro-blogging network to disseminate "an obsessive and delusional crusade" of malicious libel against her.
When Lance Armstrong crashed his bike during a race in Spain in late March, his Twitter followers found out about his broken collarbone before much of the rest of the world. The seven-time Tour de France champ also used Twitter to post a photo of himself in a hospital bed minutes before he was wheeled into surgery.
Moore's husband, Kutcher, is one of Hollywood's most avid Twitter users, boasting a following of more than 600,000. He posted a photo of Moore's age-defying behind on his Twitter feed in March, along with the message "Shhh!, don't tell wifey."
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