On November 16, 2007, Summit Entertainment announced that Stewart would play main character Isabella "Bella" Swan in the film Twilight, based on Stephenie Meyer's bestselling vampire romance novel of the same nameStewart was on the set of Adventureland when director Catherine Hardwicke visited her for an informal screen test, which "captivated" the directorShe starred alongside Robert Pattinson, who plays Edward Cullen, her vampire boyfriend. The film began production in February 2008 and finished filming in May 2008.