A new documentary about bullying that airs on the Cartoon Network on Sunday will feature opening remarks from President Barack Obama.

The movie, “Speak Up,” is described as capturing the real, everyday stories of young people who were bullied.

Last year, the president hosted a White House summit on bullying, where he told of being taunted when he was a child.

The Cartoon Network’s film is an extension of the network’s Stop Bullying: Speak Up initiative, which seeks to empower all kids to take part in the growing movement to help bring an end to bullying. It airs nationally at 5:30 p.m. Eastern and Pacific times, commercial-free, and again at 8 p.m.

Before, during and immediately after the telecast, bullying prevention expert Rosalind Wiseman will provide further explanation of key bullying issues for kids and adults, answering viewer questions online at www.StopBullyingSpeakUp.com.