Sean Penn has caused a stink in his Malibu neighbourhood by failing to fix the smelly drainage problem with his caravan.

The 'Mystic River' star lives in the aluminium trailer on his 20-acre hillside plot and neighbours say there is an unpleasant smell coming from his home. One complained: "He does not appear to have adequate drainage. It annoys us. And it can't be fun living in there when it's 100F outside." Penn moved into a trailer after his Malibu home, which he shared with ex-wife Madonna and later actress Robin Wright, was completely destroyed in a fire in 1993. So far, Penn has refused to comment on his neighbours' complaints.