In 2010, Nattiv wrote and directed his second feature "Mabul" aka "The Flood" which was nominated for 4 Israeli Ophir Awards. The film stars Ronit Alkabetz, Yoav Rotman, Tzachi Grad and Michael Moshonov, who also won the Ophir Award for Best Supporting Actor. Mabul won a Special Mention at the 2011 Berlin film Festival (Generation category),  the Audience Award and Special Artistic Achievement in the 2011 Thessaloniki Film Festival and was Nominated at the 2011 Asia Pacific Screen Awards for Best Children's Feature Film.