Questions about my first movie

[fungangersclub]

My first movie calls for some things I'm not sure how to make work.

One thing is that I have to make a mop float around. What is the easiest and most effective way to do this? I heard use green screen and with dowel rods to move the mop.

I have a chemical reaction gone wrong in my movie where a fog spreads into the room. Now the place where I'm using it is a school, so what would I use for this that would be safe and wouldn't cause a mess?

Also, my actor needs to look older. He's in his late teens but he needs to look at least past his thirties...any way to do this? (he has a beard so that helps)

 

[jblles]

dry ice in a steel drum pour water on it and it makes great fog

for the mop i do not know, but the green screen sounds like it would work

 

[MarkG]

Another option would be to use wires to move the mop around and do wire removal in post. If the camera is locked off you can probably record a clean shot of the same background and simply matte them out, if the camera is moving then you'll need to do proper wire-removal.