From what I understood, he simply endorsed the film to help it get a wider audience. He didn't produce, direct, or have an involvement with the making of the film. That's what I meant.
Producers, executive or otherwise, are usually involved in financing the film before and during its production. This didn't happen. He saw it after production and felt compelled to help spread the message.
I think it's great that he did, but it's surely one of those weird artefacts of why Koyaanisqatsi is successful.
Sounds like a strange take. From [1]:
> Koyaanisqatsi opens with the words “Presented by Francis Ford Coppola.” This simple endorsement by one of cinema’s most renowned directors solidified the film’s reputation and propelled it into movie theaters around the world.
Not sure if FFC gave them money (I guess yes since he's credited as executive producer), even without money, his name would've been enough to open a lot of doors.
Reminds of how Werner Herzog got involved in "The Act of Killing" [2], watching an 8-minute excerpt at breakfast was enough.
[1] https://culturacolectiva.com/en/movies/francis-ford-coppolas...
[2] https://www.youtube.com/watch?t=87&v=LLQxVy7R9qo