The OCEAN'S TWELVE actor stars and directs the black and white drama GOOD NIGHT, AND GOOD LUCK and was glad to see Snowdon on the red carpet.
The couple split in June (05) after a one year on/off romance. They previously dated in 2001.
When asked if a reconciliation was a possibility, Snowdon insists the pair were only friends.
She said, "I'm here to support a friend. That's why I'm here. I just want to see the movie. No, we're just friends."
And Clooney wasn't able to stay after the screening, he rushed to the British capital's Heathrow airport for a flight back to America.