Well this is unfortunate.
Matt Damon's new movie The Martian is a critical and box office success, "hooray" says Matt, it's one of the movies of the year.
It's still being promoted with TV ads, billboards, bus advertising and bus shelter posters appearing in various cities and towns across the country.
A photo appeared on Imgur this week of a bus promoting The Martian in Dublin and it's going viral.
The uploader made an observation that the vent on the back of the bus makes Matt Damon look a little bit like Adolf Hitler, have a look.
View post on imgur.com
It's a fairly recognisable moustache alright.