MILL VALLEY FILM FESTIVAL Hosts Premier of The Human Experiment Narrated by Sean Penn
Drew Altizer/WENN.com

The Mill Valley Film Festival hosted the world premiere of The Human Experiment, a Sean Penn narrated documentary that explores the dangers of chemicals used in everyday products.

Penn who executive produced as well, was most recently seen with his ex-wife Madonna in New York City for a screening of her new short film ‘secretprojectrevolution’.

The new documentary, explores the increasing number of harmful chemicals used in regular household products from shampoos and soaps, to cleaning supplies and bubble-bath, and how the control and regulation of these dangerous substances often go unchecked.