Complex sentence: The film was well received and its success led to Vaughn being tapped to direct'but he dropped out only two weeks before filming began, and was subsequently very critical of Brett Ratner's direction of "X-Men 3".
Split into simpler sentences: The film was well received and its success led to Vaughn being tapped to direct'but he later dropped out only two weeks before filming began. Vaughn was subsequently very critical of Brett Ratner's direction of "X-Men 3".