Nadav Palti is about to mark his 20th year as CEO of Dori Media, the prolific Israeli production and distribution firm headquartered in Tel Aviv. Earlier this month, Palti and Dori executives from Argentina, Mexico, Switzerland, Spain, Singapore and other locations were busy preparing to bring the company’s largest-ever slate of TV shows and movies to pitch to global buyers. Everything changed on Oct. 7. That day marked outbreak of war between Israel and Hamas after the start of a Hamas-led terror campaign in Gaza that has left more than 1,400 Israelis dead. Palti has a 34-year-old son in the...