Comedian and tennis star make a hit tourism ad

A 4-minute video ad on YouTube for Grand Tour Train of Switzerland by Oscar winning director Tom Hooper ("The King's Speech", 2010) and starring tennis great Roger Federer and comedian Trevor Noah is a big hit beyond the tourism business, with 82M views and nearly 2500 comments..

The ad feels like a documentary about two guys who try to create a tourism video about a train ride but screw it up by getting on the wrong train. Not like an ad at all.

Federer is a Switzerland Tourism Ambassador and has also made ads with Robert DeNiro and Ann Hathaway.

Be sure to watch the video.