Transcript for 'Bully': Streep Hosts Film Screening
-- a documentary that has every one arguing and everyone talking about bullies. It photographs the reality of what it is to be terrified and some actors including Meryl Streep have come forward to say they've -- they know it's true. Terry Moran reports. It is a movie that takes you straight into the nightmare reality that millions of our children live every single day. -- -- -- -- -- -- -- -- -- -- Because this. Google yeah for Lee Hirsch the director this is more than a movie. Our goal is that we've we've we've felt very simple call -- -- stop boring speak out. But that call to action is likely not going to be heard by millions of teens. The footage is so wrong teens use profanity in the film makers refused to censor. The Motion Picture Association of America has given the film an. Now major Hollywood players are fighting back open to lower the ratings so kids can see. Meryl -- posted screening this week to draw attention to the film and revealed she too -- believe. This one bully. Was hitting my legs with a stick until they blend. And kids themselves are rallying to change the rating led by Katy Butler seventeen years old and a bullying survivor. So far more than 450000. People have signed a petition Katie started. Including Johnny Depp Justin Bieber Kelly -- should be mandatory viewing for all kids going into middle school. The rating remains unchanged for now but change is happening for Alex to quiet kid at the heart of bully. He's 15 -- no longer a victim and he hopes his experience can be a lesson for all of us act. I feel like I'm actually teaching them soon. How to. Think the world a better place and Terry Moran ABC news Washington.
This transcript has been automatically generated and may not be 100% accurate.