Good Morning America co-host Diane Sawyer on Tuesday helped promote an upcoming HBO documentary on Barack Obama and allowed producer Ed Norton to gush over the "zen" presidential campaign of the Democratic candidate. [MP3 audio excerpt here] Sawyer breathlessly teased the program as "the Obamas behind closed doors. The grandmother who raised him and the man you’ve never seen."

Sawyer played several clips of the By the People: The Election of Barack Obama, a film that followed Obama and his family during the 2008 campaign. The segment, which ran six and a half minutes, will be supplemented by more promotion on Tuesday’s Nightline. When asked what surprised her about the Obamas, director Amy Rice enthused about "just how normal they were."

Norton was impressed with the "calm," "no-drama Obama." The actor continued, "And in a weird way, when you look behind the curtain with that team, they are really zen. It's amazing how zen they are."

NBC's resident Queen of Green, Ann Curry, welcomed actor Ed Norton and Carter Roberts of the World Wildlife Fund (WWF) to come on Friday's "Today" show to champion their cause to combat "global climate change" by getting everyone to turn off their lights for an hour as a symbolic move that actor Norton compared to the march on Selma, Alabama. Co-anchor Curry called Norton's cause, "really cool," and prompted the Incredible Hulk star to offer up the following historical comparison:

ED NORTON: I think it's, it's a call to action. It's, it's, it's-, turning off the lights won't solve the problem, obviously. But in the same way that the, the march on Selma, Alabama was a symbolic gesture for the civil rights movement I think those who care about climal [sic] change, climate change and carbon mitigation - which is a global movement - are, are trying to find ways to symbolically demonstrate the, the unity of purpose around the planet and, and really get our leadership to take action.

As part of its celebration of Earth Day, NBC's "Today" show invited on actor/environmentalist Ed Norton to promote his National Geographic special on PBS and the "Fight Club" star actually decried America's environmental progress compared to China as he charged the U.S. had to "catch up," to them in the area of banning plastic bags.

ED NORTON: Yeah and when, and when China is ahead of us in banning these things [plastic bags], when other countries around the world are banning these things that we, we need to get in line with that and catch up.

The following is the full segment as it occurred on the April 22, "Today"

MATT LAUER: Two-time Oscar nominee Edward Norton packed a punch with his performance in the film "Fight Club," now he's fighting for a cause, planet Earth. He's narrating National Geographic's series "Strange Days On Planet Earth," which is back for its second installment premiering this week. Edward Norton, good morning, nice to see you.