Before its release, the film received criticism from many quarters, chiefly secularist organisations, for the omitting of criticisms of religions: the central theme of "His Dark Materials." Some religious organisations also cited for the source material's anti-religious themes. The studio ordered significant changes late in post-production, which Weitz later called a "terrible" experience. Although the film's visual effects (which Weitz has called the film's "most successful element") won both a Oscar and a BAFTA, critical reception of the film was mixed and its revenue was lower than the studio had anticipated.