Cartoon Network continues its vital conversation with kids and families about speaking up against bullying with a special presentation of "The Bully Effect" on Sunday, April 28 at 4:30 p.m.

Produced in partnership with Cartoon Network as part of its award-winning Stop Bullying: Speak Up initiative and presented commercial-free, "The Bully Effect" is a half-hour CNN original documentary abridged for family audiences and features additional original content, including a special introduction by Cartoon Network President/COO Stuart Snyder as well as a candid conversation with CNN anchor Anderson Cooper, who hosts the documentary and is a recognized advocate for bullying prevention.

Concurrent with and immediately following both telecasts of "The Bully Effect," author and renowned bullying prevention expert Rosalind Wiseman will host an exclusive, live online chat at StopBullyingSpeakUp.com to answer questions from youth, parents and educators.

The documentary chronicles the journey of 14-year-old Alex Libby, whose emotional life is both restored and wonderfully activated because someone spoke up in his defense against bullying. In 2011, filmmaker Lee Hirsch embedded himself in schools across America and captured footage so raw and eye-opening, it sounded alarm bells and helped create a tipping point about how critical the issue of bullying has become. Hirsch documented a then 12-year-old Alex, who was confronted with slurs, threats and beatings on the school bus nearly every day.

Campaign resources include video, print and online content—including the award-winning documentary "Speak Up" introduced by President Barack Obama—available at StopBullyingSpeakUp.com, available at no charge to schools, community groups and parents to motivate bullying prevention activities or discussions.

Get more information about the premiere here.

Following the live chat, the documentary will be posted in its entirety on the website, starting Monday (April 29) at 10 a.m. for free, ongoing viewing by students, parents, educators and community leaders.