BEVERLY HILLS, Calif. - Helen Mirren wore a pen on her red gown and George Clooney sported a lapel pin stating "Je Suis Charlie" at the Golden Globe Awards on Sunday in a show of support for victims of the deadly attack on a satirical French newspaper.In the first big gathering of the Hollywood awards season, actors used the event to hold up signs on the red carpet and defend freedom of expression after the killing of cartoonists at the Paris weekly Charlie Hebdo last week.The attack brought a somber note to what is deemed one of the most lighthearted nights for the film and television industry, organized by the Hollywood Foreign Press Association (HFPA)."As international journalists we also understand the importance of freedom of artistic expression," said HFPA President Theo Kingma."Together we will stand united against anyone who would repress free speech anywhere from North Korea to Paris," he added, bringing the star-studded room to a standing ovation.Third-time hosts Amy Poehler and Tina Fey took a more humorous tack about free expression, opening with a joke about the hacking at Sony Pictures , which the US government has blamed on North Korea. The country, which denies it is behind the hacking, was angered over the studio's comedy "The Interview," which depicts the assassination of leader King Jong Un."Tonight we are celebrating all TV shows we know and love and all the movies North Korea was OK with," Fey said.