Nat Wolff and Cara Delevingne. Photo by Michael Kovac/WireImage.
Nat Wolff and Cara Delevingne. Photo by Michael Kovac/WireImage.

What: A special screening of new film Paper Towns, hosted by Forevermark Diamonds.
When: Saturday, July 18th

Where: The London West Hollywood in Los Angeles.

Who: The film's stars--Cara Delevingne, Halston Sage, Nat Wolff, Austin Abrams, Justice Smith, and Jaz Sinclair--were joined by guests like Kendall Jenner, Kylie Jenner, Jaden Smith, Spencer Grammer, and George Lewis Jr. aka Twin Shadow.

Why: The cast celebrated their reunion with an influx of Instagrams, of course.