Two years ago today, dozens of protesters were killed when Iranian security forces cracked down on public marches challenging the legitimacy of the 2009 Presidential election.
One of those slain was a philosophy student named Neda Agha Soltan.
This is the PBS/BBC documentary, from November 2009, on her death and on the post-election conflict in Iran.
See also The Latest from Iran (20 June 2009): From Rally to Street Fighting