Protective film on the underside of the rear wing?

[colt_seavers]

I am in the process of painting my Durango shell. The protective overspray film is on the underside of the rear wing, but surely this is the side you paint? Or am I going completely mad?

I cut out the wing, sprayed the underneath of the wing and then backed it with white. I have just come to peeling off the film and it's underneath. Therefore I have peeled off all the painting I have done (just one block colour).

Feeling pretty stupid here!