They are descendants of families who fled or were forced to flee during fighting which created the state of Israel in 1948.
(Writing by Gareth Jones) Nearly half a million Palestinian refugees live in mostly overcrowded, impoverished conditions, in 12 camps in Lebanon.
Several football leagues in Europe, including Germany's Bundesliga, have drawn up plans to be ready to play games without spectators if it means finishing the season and remaining contractually in order with broadcasters and sponsors.
Shaar, who escorted Sarandon around the camp, said she also had plans now to establish a small restaurant which could serve as "a safe place for women to come and relax mentally and physically, to come to eat, drink and express themselves more".