George Clooney's girlfriend's dogs caused chaos on his current film set.

Elisabetta Canalis - the Italian model and TV personality who has been dating the 48-year-old Hollywood hunk since last year - reportedly caused a commotion when she let the pooches loose while he was shooting action film 'The American'.

A source told the Daily Mirror newspaper: "She has a puppy called Andrea and a bull terrier, Vittorio - they left their dirt everywhere!"

The brunette beauty's pets are not the only animals to have caused bedlam behind the scenes.

Britney Spears let her Yorkshire Terrier London run riot during a photo shoot.

When the 'Womanizer' singer was being snapped for OK! magazine in 2007 - at the height of her highly-publicised breakdown - she allegedly used a Chanel dress to clean up her dog's faeces from the floor.

Earlier this month, Mariah Carey's bath time was ruined when her beloved Jack Russell Terrier ChaCha jumped in the tub with her.

She tweeted: "My dog ChaCha just jumped in the tub while I was trying to take a bath & she won't get out (obviously I did lol). (sic)"