Reykjavík Whale Watching massacre or RWWM is an Icelandic 2009 horror film.

[4] The film was released in theaters in its native country of Iceland in September.

Advertisements, which started with the words "The first Icelandic Thriller" were removed and the producers added in "Should only be seen if you have a sense of humor."

E1 Entertainment have picked up UK rights for theatrical distribution[8] and was released on 10 May 2010.

[9] The film ran in the UK as Harpoon: The Reykjavik Whale Watching Massacre.