I had a pellicle like this form on top of a roggenbier while it was in the primary. I pasteurized the beer by heating it covered to 160F, holding for 20 min, and letting it cool. The pellicle didn't come back and I bottled it. Not going to touch it for months, and I'm hoping the smell gets better.
"I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth."
Pondering: Roggenwein, Irish Red, Another Single-Hop IPA, Roggenbier w/ local wild yeast
Primary: Hefeweizen, Nugget Single-Hop IPA, Chamomile Wheat
Secondary: Saffron Metheglin
Bottled: Belgian Strong Dark, Saffron Wheat, UK Barleywine, Tripel, IIPA