walked if Eckhart had testified. Dormer learns that Burr has gone to Finch's. He finds Kay's letters in Finch's apartment and realizes that Finch intends to kill Burr. He learns of Finch's lake house and rushes there. At the house, Finch knocks Burr unconscious just as Dormer arrives, and takes Burr's gun. Dormer is too disoriented from lack of sleep to fight off Finch. Burr revives and saves Dormer, while Finch escapes. Burr reveals she knows Dormer shot Eckhart, and he admits that he is no longer certain if it was an accident. From his shed, Finch shoots at them with a shotgun, and Burr returns fire with Dormer's gun while Dormer sneaks around to Finch's location. After a scuffle in which Dormer grabs Finch's shotgun, Finch shoots Dormer with Burr's gun, and Dormer shoots and kills Finch with the shotgun. Burr rushes to the fatally wounded Dormer and comforts him by affirming that Eckhart's shooting was accidental, then moves to throw away the 9 mm shell casing to preserve Dormer's reputation. Dormer stops her, however, urging her not to lose her integrity as he had. Dormer says his last words "just let me sleep" and dies just as Burr puts the bullet back in the evidence bag. Cast Al Pacino as Detective Will Dormer Robin Williams as Walter Finch Hilary Swank as Detective Ellie Burr Maura Tierney as Rachel Clement Martin Donovan as Detective Hap Eckhart Nicky Katt as Detective Fred Duggar Paul Dooley as Chief Charlie Nyback Crystal Lowe as Kay Connell Jay Brazeau as Officer Francis Larry Holden as Officer Farrell Brooks Kerry Sandomirsky as Trish Eckhart Lorne Cardinal as Officer Rich Katharine Isabelle as Tanya Francke Jonathan Jackson as Randy Stetz Paula Shaw as The Coroner Production Jonathan Demme was originally attached to direct the film and considered Harrison Ford for the role of Will Dormer. Casting Insomnia has Robin Williams playing a villain, deviating from the comedic roles for which he was earlier known. Regarding his decision to cast Williams, Nolan said: "I think [audiences] will come away feeling like they have seen a 'new' Robin Williams. Seeing Robin Williams doing something they would have never imagined that he would or could do." Nolan on Williams's acting: Filming Insomnia was filmed over a three-month period from April to June 2001. The opening aerial scene was filmed over the Columbia Glacier near Valdez, Alaska and the