Emma Stone earned 26 million from the 30 million budgeted winning movie, most of which the result of a well crafted contract. The movie grossed almost 500 million!
Here are some behind the scenes.

https://www.jonathanmccormick.com/forum/arts-entertainment/la-la-land-emma-stone-behind-the-scenes
We applaud Ms. Stone for her business savvy! Great actor and roll model. Thanks for the leadership Ms. Stone!