Scarlett Johansson kicked butt on the screen and at the box office this weekend with the new femme fatale film, Lucy.

The Luc Besson movie about a superhuman woman who possesses the ability to use 100% of her brain power, brought in $44 million over a three-day period giving it the top spot.

The weekend’s other big opener was Hercules starring Dwayne Johnson (and his chiseled physique). Brett Ratner’s origin story about the son of Zeus rang in at $29M.