Trivia

According to the director, he was worried that Miles Teller and Shailene Woodley wouldn't get along after he saw them interact at a lunch he arranged. Teller (who was late to meeting because he had been in Las Vegas with friends the night before) was outgoing and energetic, while Woodley, though amused by Teller, was quiet and for the most part kept to herself unless she was spoken to. After the lunch was over and the director was driving away, he noticed Woodley and Teller talking in the parking lot, but decided to leave them alone - he later found out that the two of them spent two hours talking and getting to know each other in the parking lot. Teller and Woodley are now close friends.

At one point during preproduction, the script began to change. Shailene Woodley was worried that the new rewrites would make the story less honest, and at one point even called Miles Teller to tell him that she was thinking of dropping out. Teller managed to convince her to stay on the movie, and the rewrites never happened.

Filming took 25 days.

After The Descendants (2011), Shailene Woodley had not been given any scripts she was passionate about making and had seriously considered dropping out of acting to pursue another career. Thankfully this project came her way and she fell in love with it.

Brie Larson and Shailene Woodley became close friends while shooting this film, despite them sharing only one scene in the whole movie.