Beowulf & Grendel is a 2005 film Canadian-Icelandic fantasy adventure film directed by Sturla Gunnarsson, loosely based on the Anglo-Saxon epic poem Beowulf. It stars Gerard Butler as Beowulf, Stellan Skarsgård as Hrothgar, Ingvar Eggert Sigurðsson as Grendel and Sarah Polley as the witch Selma. The screenplay was written by Andrew Rai Berzins. The soundtrack was composed by Hilmar Örn Hilmarsson. While some of the film remains true to the original poem, other plot elements deviate from the original poem: three new characters, Grendel's father, the witch Selma, and Grendel's son are introduced, and several related plot points were developed specifically for the film.