(CBS News) Our planet faces a troubled future, or so actor Jeremy Irons believes. He intends to shock us into action, as we hear from Tracy Smith:
In the 1995 movie "Die Hard: With a Vengeance," Jeremy Irons was pure evil as an urbane and elegant bad guy.
As Simon Gruber, he terrorized pre-9/11 New York City, practically in the shadow of the still-intact World Trade Center towers.
Scary stuff . . . but it's nothing compared to Jeremy Irons' latest film.
In the new documentary "Trashed," Irons shows us the terrifying possibility of a future world buried in its own garbage.
"After doing the documentary, how conscious are you, when you walk down the street, of trash?" asked Smith.
"Well, I mean, this part of New York is wonderful, there's no trash in sight," Irons said. "And I think it's a case of out of sight, out of mind."
"We throw it away and it's gone?"
"That's right. It's clean, it's lovely, it's not something we have to worry about. But where does it go?"
Where, indeed? In Indonesia, garbage goes in the nearest river, and eventually out to sea. Worldwide, according to the film, Americans could recycle 90 percent of the waste we generate, but right now we only recycle a third of that -- and some of our trash eventually finds its way back into us -- such as plastics leeching into our food supply.
It's weird to see an Oscar-winning actor rooting through trash cans in New York City's nicest neighborhood, but for Irons, garbage has become, well, personal.
He pulled out one object: "Now this is recyclable, this is great, but it's half full, so it's wasted food. Coconut water: Fantastic for you, 100% pure, and it's thrown away half-full. We waste a huge amount of the food we buy."
WEB-EXCLUSIVE VIDEO: Jeremy Irons on why he doesn't throw stuff out
"You have no hesitation to just pick through the trash, Jeremy?" Smith asked.
"No, it's rubbish. That's all it is. It's just dirt. A bit of dirt before you die is good."
"Celebrities get asked to be involved in a lot of different causes; what was it about trash that made you say, 'I have to do something'?" asked Smith.
"I wanted to make a documentary about something which I thought was important and which was curable," he said. "It's not rocket science. It takes a little effort, it takes a little thought. It takes a little education. I think most people want to do what is right. But they need a bit of organization.
"We make everybody wear seatbelts now. That was a bore, wasn't it? But we do it, and we don't think about it anymore. Very simple to do the same with how we deal with our garbage."
It might not be easy to picture Jeremy Irons as a garbage activist: From his breakout role in 1981's "The French Lieutenant's Woman," he has been in more than 40 movies, at least as many plays, and has won just about every acting award there is.
"I've been very lucky," he said.
"You have a slew of awards that would say you got some talent," Smith suggested.
"Yeah, if awards mean that. Yeah. Yeah."
"You don't think they mean much?"
"I do. I do. And I really don't want to denigrate them. I think awards are fantastic. I don't let them go to my head. I always, when I start a new piece of work, I still feel like a plumber, but I don't know how to do it. I just sort of feel out of my depths -- I'm not very good at plumbing!"