When the trailer dropped, Directioners immediately noticed two creative liberties taken by The Idea of You: August Moon's loose pants (One Direction was famously of the skintight black jean persuasion) and the idea that in the film's universe, a boy band like One Direction headlines Coachella. But what about August Moon's sound?

Fictional band August Moon's lead single is catchy, fun and poppy - and more than slightly reminiscent of One Direction's What Makes You Beautiful. But it's not plagiarism. It sounds similar because it's been produced by the same duo, Savan Kotecha and Carl Falk.

Kotecha's 1D connection definitely comes through in August Moon's music. The fictional band's lead single "Dance Before We Walk" has drawn countless comparisons to the real band's breakout 2011 hit single, "What Makes You Beautiful." Both songs were written by Kotecha and Carl Falk.

It stars Anne Hathaway as Solène, a 40-year-old single mum who falls for 24-year-old Hayes Campbell (Nicholas Galitzine), the lead singer of the popular boyband, August Moon, after meeting at Coachella. The film is based on the novel of the same name by Robinne Lee.

From boy-band bootcamp to late nights filming, Nicholas Galitzine and his fellow August Moon members tell PEOPLE how they created chemistry with each other