might be a little harder to get a fully black background with that set up...but it shouldn't be too much trouble.
as ozzie mentioned, the more space you have between you and the background, the easier to have the background show up darker.
also, since it is in a corner, you will have light passing thru the sheet since it doesn't have a solid object like a wall behind it completely.
i would get a couple utility lights and position them at the sides...remeber that you want to be lighting the subject..not the background...so don't point the lights directly at the sheet..point them at you, and yes it will get hot..and you will be blinded for most of your shots.
the ceiling light looks pretty bright as well..i would mess around with 2 lights either from the sides pointing at you..or one on the side and the other on the ground point up into your chest and face area...and either turn down the room lighting or turn it off completely and see if your camera can handle the lighting like that without getting grainy...would provide for some nice dramatic subject lighting and a nice solid background
"Traveling at the speed of dark"
agent number 4..I /rollz for the lulz...a new standard has been set.
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