Call this weekend the calm before the storm, the last weekend before the official start of the summer movie season. Performing at the highest level of reasonable expectations, The Other Woman soundly topped the box office with a robust $24.7 million. The $40 million comedy stars Cameron Diaz, Leslie Mann, and Kate Upton, concerns three women (the girlfriend, the wife, and the mistress) who find out they are all being betrayed by the same guy and get their revenge.