Your mother told you math class would be important someday, you just didn't know it would come in handy when deciding which movies to see this weekend.

Luckily, NextMovie can't scold you for not turning in your homework — we're just here to help. Whether you're in the mood for porn ("Lovelace") or planes (uh, "Planes"), we've got the equations helping you break down what, exactly, this week's new releases are all about. Read on for your weekly arithmetic.

August 7

Percy Jackson: Sea of Monsters

We're the Millers

August 9

Disney's Planes

Elysium

Lovelace