More than 100 people gathered at the White House this week for a special screening of Diego Luna’s biopic "Cesar Chavez."

The audience included director Luna, stars Rosario Dawson and America Ferrera, labor leader Dolores Huerta and House Minority Leader Nancy Pelosi. United Farm Workers President Arturo Rodriguez was also present. The president was introduced by Julie Chavez Rodriguez, deputy director of public engagement at the White House and the granddaughter of Cesar Chavez.

In remarks made shortly before the film began, President Obama praised Chavez’s resilience. "That is one of the great lessons of his life — we don’t give up the fight," Obama said. "No matter how long it takes, no matter how long the odds, we keep on going."

The film opens in theaters nationwide on March 28.

(h/t Variety)