steve gleason, the former football player, whose sensational play put the saints back on the map after thanks to "gleason," a documentary about his life and his ongoing battle abowith a.l.. >> people are changing how they live their life after they see our movie. it's no, ma'amal. >> reporter: not to sound cliche, you have changed my life. and i think i'm going to be a better parent after watching your film. >> that's what dads do. they pass the best of themselves to their kids. >> reporter: the film is a love letter to his son, rivers. in 2011, steve was diagnosed with a.l.s. at just 34 years old. >> the disease is almost always fatal. >> reporter: six weeks later, his wife, michelle, would find out she was pregnant with their son. steve aware of how a.l.s. would rob his ability to talk to him, recorded hours of videos. >> i'm going to be around, buddy. and it's not going to be easy but it's going to be awesome. >> reporter: you say in the film the father/son relationship isn't going to be easy but it's going to be awesome. what's the most awesome part about it? >> it can sometimes be