Courteney Cox and David Arquette Civil at 'Scream 4' Premiere

The couple who announced their split last year did not let their personal problem show when promoting the horror movie in Los Angeles.

AceShowbiz - Celebrities flocked into the premiere of "Scream 4" at Grauman's Chinese Theater on Monday, April 11. Estranged couple %cCourteney Cox% and %cDavid Arquette%, who announced their separation while filming the horror flick, was friendly during the event, taking few poses together with fellow original star %cNeve Campbell%.

In a recent interview, Neve talked about the couple's problem which was visible on the set. "I wasn't surprised," the actress quipped. "I was aware a little bit of what was going on. They were very professional during the film and weren't talking about it or making an issue of it, but I was somewhat aware of what they were dealing with. And, you know, it's sad. They adore each other, they love each other very much, and it's always sad when a relationship has to end."

During the premiere, David and Courteney gave each other a hug before facing the press. He was supported also by his actress sisters, %cPatricia Arquette% and %cRosanna Arquette%.

Beside the lead cast, %cAnna Paquin%, %cAlison Brie%, %cLucy Hale%, %cShenae Grimes% and %cPete Wentz% wore all sorts of dark ensemble in true tradition of the horror movie. Meanwhile, young stars like %cHayden Panettiere%, %cAimee Teegarden%, %cKristen Bell% and %cEmma Roberts% defied the theme with their colorful dresses.

"Scream 4" is slated to hit theaters in the U.S. on April 15. Several years after the events of "Scream 3", Sidney Prescott returns to her home town of Woodsboro on the 15th anniversary of the first Woodsboro Murders for a tour of her new self-help book. However, with her return to Woodsboro also comes the return of past slasher-killer Ghostface, who is starting to stalk and kill Jill's friends and several other people in the Woodsboro area.

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