Eragon is a 2006 fantasy-adventure film based on the novel of the same name by author Christopher Paolini. The cast includes Edward Speleers in the title role, Jeremy Irons, Garrett Hedlund, Sienna Guillory, Robert Carlyle, John Malkovich, Djimon Hounsou, Alun Armstrong, Joss Stone, and the voice of Rachel Weisz as Saphira the dragon.