Feedback. I Needs It.

Hello all.

I've recently been trying to decide what my next screenplay should be. I always have several ideas running through my head and it helps when I know what ideas people like.

This is an idea I've had for a couple months and enjoy it highly, but only recently have been able to make it make sense, if that makes sense. I've been able to develop it more and now can see it working as a full length movie. Enough jibber jabber, here's a rough pitch:

A slacker accidentally locks himself in a fallout shelter and survives a nuclear holocaust. After a small amount of time, he is released, is under the belief that he is the last living person, and tries to rebuild society with the help of a misunderstood zombie. After hearing a cry for help over a radio from a group of survivors, one of which being a girl he had a crush on pre-holocaust, the slacker decides to travel cross country and find them. Hopefully, he'll get there before her newly mutated boyfriend, who is extremely jealous and hungry for human flesh.

It's a post-apocalyptic road trip movie with laughs, drama, horror, love, Thunder Domes, and copyright infringements.

The title:

Apocalypse Yesterday

I imagine it as a mixture of movies like Mad Max and the films of Judd Apatow. You never see these type of "end of the world" sci fi movies from the point of view of someone with a sense of humor...or is more pathetic and easy to laugh at.

So, what are your thoughts? Is it funny? What do you like/dislike? Do you think this premise would be a good next script? Oh, and how long would one have to wait before they could reenter a recent nuclear explosion site?

I'm trying to write something that's more high concept, but at the same time is marketable and mainstream, especially seeing that I would like to return to Pitchfest this year.

Thoughts?