Get a behind-the-scenes glimpse at scientists Arieh Warshel and Michael Levitt in this excerpt (3:53) from “The Nobelists,” a YES documentary about Israel’s Nobel prize winners. Learn why Warshel loves Pac-Man, why Levitt readily calls himself a geek, and how both scientists’ passions and upbringings ultimately led to their earning the Nobel Prize in Chemistry, along with Martin Karplus, in 2013.