I know it's your first brew and that you're excited to open a bottle, but you'll really do yourself a favor to wait 3 weeks before opening the fist bottle. Give the beer time to carbonate and condition a bit.
I agree that it looks like a residue issue. When you open the next bottle, use a glass that is clean. Clean the glass with salt or another method like those found in
this thread .
Pour half the beer in the freshly cleaned glass and half in a glass from the cupboard. If the film is in both glasses, it's a beer issue. If it's only in the cupboard glass, it's a residue from your dish detergent.