The crew kept a running tally of the number of iPhones that were broken because whenever director Lisa Azuelos would get frustrated, she would throw one on the ground.
"The Big Bang" by Rock Mafia appears twice during the movie. Miley Cyrus starred in the song's music video.
Douglas Booth learned how to play guitar for his role in the film.
Director Lisa Azuelos only wanted to do the American remake if Demi Moore would star in it.
Lisa Azuelos both wrote and directed the first incarnation, LOL - Il tempo dell'amore (2008), the French film starring Sophie Marceau, after realizing that movies based on teen life in her home country of France were almost entirely missing. She would often see her daughter go to the theatre to watch either an American teen movie or a horror film.