oil checking on 2004 Mazda RX-8

when cheking oil. condensation noted a white film around opening of oil cap and on dipstick

Asked by for the 2004 Mazda RX-8
That's probably OK, try checking for the condensation when the engine hot right after a good run. I don't think you should see signs of water then. If you do, I'd want to check out the crankcase vintilation system to be sure it's clean and clear.
I think the weather's been wet and cold in your parts so some condensation is fairly normal. If you see any signs of coolant, that's another story.