The two-time Oscar nominee, known for The Social Network and Now You See Me, was in Ukraine's Lviv region as part of a humanitarian mission supporting children affected by Russia's war, according to Ukrainian broadcaster TSN and the US-based Campfire Project. “We were woken up by the air raid siren, we went down to the shelter and in the morning I saw the aftermath of the shelling,” Eisenberg said. “It was devastating, horrific, outrageous and tragic. I thought: What if New York were bombed? What if my home were bombed? Because Lviv really reminded me of the city where I live.” Russia has repeatedly targeted cities across Ukraine with missiles and drones since launching its full-scale invasion in February 2022. Although Lviv, near the Polish border, is far from the front lines, it has also come under periodic long-range attacks. Eisenberg spent a week volunteering in Ukraine, leading acting workshops for more than 70 Ukrainian children and teenagers. The program also included art therapy, dance, individual counselling and theater activities. The actor said the visit was also deeply personal because of his family's ties to the region. “My family survived war in Lviv, and very close to where we are working here, there was somebody who saved my family's life,” he said. “So, in some way, I feel this indebtedness to be here and to do something positive for people who are currently going through war.” Eisenberg, who received Polish citizenship in 2025, has previously spoken about his family's roots in Poland and Ukraine, themes he explored in his 2024 film A Real Pain, which he wrote, directed and starred in.