The fight on B-12 deficiency doesn’t sound like much to most Americans, but B-12 awareness ended up saving thousands of lives.

“Sally Pacholok” is a feature film about the ER nurse who was the whistleblower on the B-12 awareness campaign despite years of harassment and a gag order from her hospital about her raising national awareness.

Pacholok wrote the book “Could it Be B12?” in 2012 with her husband Dr. Jeff Stuart. It’s based on the events from 1990-2005 and changed the medical industry today. She has another book called, “What’s Wrong with My Child?” on the market in a couple of weeks about B-12 deficiency in infants and children.

Latino-Review has an exclusive clip from the film. In this scene, Sally Pacholok (played by Annet Mahendru) confronts a nurse over lost test results at the hospital.

“Sally Pacholok” is premiering at the Washington DC Independent Film Festival tomorrow, February 28, at 7:20 p.m. and on Sunday at 11 a.m. It will also be playing at the LA International Women’s Film Festival on March 21st at 2:30 p.m.

Check out the clip below.