The 'American Ultra' premiere will be in LA on August 18 + contest details

Per the contest's 'terms of use' the premiere of 'American Ultra' 

in Los Angeles will be on Tuesday 18 August 2015.

Marie Claire: Kristen Stewart is our (bold, brilliant, badass) August cover girl. And that means you not only get to see inside her life and steal her cool-girl styling tricks (it is our annual denim issue, after all), but thanks to our partnership with FRYE Boots, you also have the chance to *meet* Stewart and attend the premiere of her new movie, American Ultra, in Los Angeles. It's okay to pause at this moment to pinch yourself.

Enter HERE for a chance to win:

• Tickets for you and a guest to attend the American Ultra movie premiere and VIP after-party
• Round-trip airfare and hotel accommodations in L.A.
• A meet-and-greet with Kristen Stewart
• A pair of FRYE Parker Over-the-Knee Boots

Oh, and if you don't win the grand prize, fear not. Fifty winners will receive tickets to see American Ultra with a friend in their hometown.

The contest begins on July 13, 2015 and ends on August 3, 2015 and only US residents are legible.

Source: Marie Claire