Yikes!
Get a UV filter on there pronto to protect your naked lens!
Leave it on there 24/7/365.
I think my nubie cam lens has had maybe five minutes of fresh air since I bought it.
Stop down your aperture and everything will be in focus.
You can tinker with settings to even keep some remote sense of DoF, though.
Figure out where the (distance from the camera) middle ground where your actors will be moving about.
Example: 15-25 out away from the camera. No one closer than 15' from the camera. No one farther than 25' from the camera. Left right doesn't matter.
Then zoom in on a focus target set at 20', halfway into your 15-25' focal field, set focus manually.
Zoom back out.
Adjust aperture until everything between 15-25' is in crystal focus.
f3 or 4?
Objects 4' and 40' away should have fuzzy edges.
What the h3ll. Worth a try!
GL!