Most recently, he shot the critically acclaimed "rockumentary" “Heima - a film by Sigur Rós". In 2010 Alan served as a cinematographer on "Go Quiet", a film with jonsi (Jón Þór Birgisson), the film was directed by Dean DeBlois.
He co-wrote and co-directed the Oscar-nominated animated films Lilo & Stitch for Walt Disney Feature Animation and How to Train Your Dragon for DreamWorks Animation, and directed the Sigur Rós documentary/music film Heima.