How many movies have Jón Gnarr and Magnús Viðar Sigurðsson collaborated on?

They have worked on 2 movies together! Their first movie together was Jón Gnarr: Once I Was A Nerd (1998) while their highest rated movie together was Mr. Bjarnfreðarson (2009). They have not worked together since Mr. Bjarnfreðarson (2009).