He was born in Bergamo in 1975. He has achieved in 2001 a degree in Performing Arts in Bologna, writing a thesis on independent cinema low-cost production systems. Before of that, in 1999 he had achieved a digital camera operator diploma in Imola. He works on his own documentary projects since 2000. In 2003 he works as Assistant Director for the movie "Dopo Mezzanotte", directed by Davide Ferrario, the two of them will collaborate again in "La strada di Levi", for which he directs the segment of the movie shot in Moldavia. In 2013 he works as co-director for "Striplife", awarded with the Special Prize of the Jury in the 31st edition of the TorinoFilmFestival, entirely shot in Gaza Strip. His most important work, "Di madre in figlia" (2008), was the only Italian documentary selected for Toronto International Film Festival in 2008. Zambelli is part of the generation of filmmakers who has built his own creative work on digital footage: his camera reaches places a traditional crew wouldn't reach, this technical privilege allows him to get very close to the intimacy of the characters of his movies.