Paper Towns: Kendall, Kylie and Jaden Smith

Jaden Smith arrives at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

Austin Abrams arrives at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

John Green arrives at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

Austin Abrams, left, and Halston Sage arrive at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

Kendall Jenner, left, and Kylie Jenner arrive at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

Kendall Jenner arrives at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.

Cara Delevingne arrives at the special screening of 'Paper Towns' help at The London Hotel on Saturday, July 18, 2015, in West Hollywood, Calif.