It was a monstrous weekend thanks to Warner Bros. 's The Meg , which devoured everything in its path en route to a nearly $150 million global debut. As a result, the weekend box office was up 5.7% compared to last weekend and over 25% compared to last year, with the top twelve grossing over $132 million. It was also a strong weekend for Focus Features's release of Spike Lee 's BlacKkKlansman and Screen Gems's Slender Man even over-performed against expectations, though a disappointing CinemaScore for the latter is likely to lead to short-lived theatrical run. As already said, the #1 film at the weekend box office was WB 's 70-foot shark The Meg . The film brought in $45.4 million domestically, nearly double BoxOfficeMojo's weekend forecast. Heading into the weekend, the most optimistic expectations were around $30 million, which puts into perspective what a massive performance this is. The debut gives director Jon Turteltaub the largest opening of his career,