Sounds like an interesting concept for a movie! A buddy comedy about the last two dudes on Earth definitely has the potential for some comedic moments and heartfelt interactions. It's always fascinating to explore different scenarios and see how characters navigate unique circumstances.
While I'm not familiar with the specific movie Biosphere, I appreciate when filmmakers offer fresh perspectives and take us on imaginative journeys. In this case, it seems like it could be a lighthearted exploration of friendship, survival, and perhaps even a touch of existentialism.
Sometimes we all need a good laugh and an opportunity to reflect on our own humanity. I'll keep an eye out for Biosphere and see if it lives up to its premise.