Dario immediately showed a natural attitude toward cinema, the set, and editing, playing in several different roles in movies since he was a child.
Among the most relevant documentary activities was Managers, written and directed by Dario in 1998 using a small camera, which showed Roman homeless people's lives.
[7][8][9][10][11][12][13] The movie was screened as special event on the " Orizzonti" section on the 64th Venice International Film Festival,[12] and was broadcast on Italia 1 television and then was edited as a DVD.
Together with Marcello, his father, he directed, in 2008, the movie Narciso, dietro i cannoni, davanti ai muli, winner of eight film festivals, among which the RIFF.
[14][15] In 2009 he worked as second unit director for the "Crimini 2" fiction, broadcast by Rai 2 in prime time and, in the meantime, still directs commercials and videoclips for Pepsi, Chrysler, Sony, Universal, Emi and other companies.