The art of becoming is a poetical documentary on three unaccompanied minors from Afghanistan, Syria and Guinea, who hope for a stable future in Europe. Their stories are intertwined : Fattah toils in Istanbul, hoping to earn enough for the journey to Greece and then Italy; Saleh has been living in Europe for three years but yearns for his parents; and Mamadou tries to hang on to his job and his education in Belgium in spite of having become an undocumented migrant. The movie is character-driven. It steers clear of traditional interviews but radically opts for an artistic depiction of the reality of each of the boys through a camerawork that borders that of fictional movies.