The Trainspotting star discovered an advertisement by a company giving fans the opportunity to meet their idols, which claims a lucky winner can meet MCGregor for a night out in London if they donate to a charity draw for the United Nation's Children Fund (UNICEF).

However, the Scottish star has publicly alerted his fans to the offer, insisting he has nothing to do with it. He writes in a post on Instagram.com, "(The company) is claiming you can have a night out with me if you donate to their 'charity'. They claim your (sic) helping UNICEF. I have absolutely no connection with this page. Please do not donate thinking I am in any way involved - I am not. I assume it is some kind of scam. Ewan."

He also wrote a similar message on Twitter.com.

A representative for the company claims the advert was published in error, and it has since been removed from the Internet.