George Clooney has reunited with ex-girlfriend Krista Allen, following his split from Lisa Snowdon, according to The People.

The actor was spotted "kissing and canoodling" with Allen near Lake Como in Italy, where he owns a villa.

"They looked very close, just like a married couple," a source told the newspaper.

However, it seems that Snowdon is upset that Clooney has moved on so quickly.

A friend added, "Lisa is gutted. She was always competing with the ghost of Krista. Now her bitter rival is very much back on the scene."