Interstellar was not about global warming. They never really never say why the earth is failing other than blight.
Saw the movie yesterday, and their was no mention of global warming, wasn’t even hinted at. I found the movie’s themes dealt with science, physics, and human nature, as someone else coined the phrase my “Leftwing Hollywood meter” did not go off once.
I watched Interstellar last night. Way too long and rather boring.