In October 2008, the film began shooting in Texas. Arizona, New Mexico and Canada are all candidates for filming locations. In order to show different social scenes in the film, the film crew listed many locations, but in the end the crew came to Texas for the preferential policies of Texas.
Claire Catherine Danes is under tremendous pressure to shape a public figure. When he accepted the invitation from the crew, Dennis just "had a general impression" of Glentin. In order to play this important role well, Dennis plunged into the "research work". She first watched a documentary by Granting. Then I read the biography of Granting, and observed the life and speaking habits of autistic patients. Before the filming started, she made a special trip to visit Granding. The two women chatted for six hours in Granding's apartment. The day before the film was finalized, Saines invited Granding to the set, because the plot that was filmed on this day was the plot of her design of the livestock flooding pond and put it into use. Although Grantin did not make any comments on Dennis' performance, and even she deliberately avoided Dennis, she still gave a lot of instructions on the set on how to properly use the flooding pond and how to guide livestock to walk in it.
