You're gonna need a lot of luck on this one buddy, seeing how bad reviews the first one got. It is most definitely going to affect on how people view this sequel you're making.
But I admire your optimism, and who knows, it might become a really good movie.
Just keep it original, and don't copy too much from the first (actually don't copy anything from the first).
Edited:
Also, what kind of filming equipment do you have?
Nikon S93000, records with a full 1920x1200 resolution and 60 Frames-per-second.
Standard Vista Explorer Tripod
Again, indie movie.
Edited:
have you filmed any movies before? do you know anything about filming a movie?
do you have an upper limit for your budget? do you have access to resources like sets, actors, editing equipment, etc?
Edited:
also if you post your completed script here we could give you constructive feedback, otherwise there's not much we can say
I'm not sure If I want to post the script. It's still in the revision process, but it is completed.
I have a basic audio editor that filters out background noise while leaving the original audio file in sync,
and I'm currently doing my homework on camera angles.
Never filmed anything before.