Aronofsky began to develop other films. When he looked over the books he used to research for "The Fountain", he decided to return to "The Fountain", feeling closer to it creatively than the other possible projects. Without a studio and an actor, he decided to write a "no-budget" version of the film, using his experiences filming "Pi" and "Requiem for a Dream" with small budgets. In February 2004, Warner Bros. resurrected Aronofsky's project and began to court actor Hugh Jackman to replace Pitt in the lead role. The film received a second greenlight with a budget of $35 million, in part because of the director's willingness to leave costly set pieces out of the screenplay. In August, actress Rachel Weisz joined Hugh Jackman for the film, filling the vacancy left by Blanchett. Filming lasted 60 days in early 2005 and took place mainly on a sound stage in Montreal.