All of the cast were 12 or under at the time of filming.
Shot by students of Sergi Rubió's course at Escola Samuntada, located in Sabadell. Intended to be a "learn by doing" experience for the students, the goal was to budget, finance, shoot, and edit the film using primarily students, with Sergi Rubió overseeing.
Such is the confidence that Sergi Rubió places in the talent of his favorite editor, Lucero Quintela, to whom he prefers to entrust the post-production of everything he directs, as opposed to taking a class in film editing. Deep down, he knows that as soon as he sends the first version of what he has shot, her sharp vision would inevitably reveal an unexpected surprise.