Spike TV debuted new footage of Heath Ledger in their documentary trailer.
"Heath was the most alive human, and if it wasn't on the edge, it didn't interest him," Ben Harper begins.
Other friends sing his praises as footage of the late actor flash across the screen.
The Australian actor died in January 2008 aged 28 following an accidental drug overdose.
"I Am Heath Ledger" will debut April 28 at the Tribeca Film Festival.