Guessing you already bottled. But if the pellicle is that developed, esp in a carboy where you should have less oxygen, AND it tastes good I'm Guessing youd be ok. Depends on how long it say though. I would've gone easy on the carb levels for sure
I've had uninte tional sours 2 ways. One where it Definitely seemed to be on its way to sourville. And 2 others that just tasted off. Weird tangy off flavors in the finish, likely due to me stubbornly ignoring my water profile. Definitely not Brett or lacto flavors developing since I seem to enjoy those. Adding a souring blend for a few months fixed every one of them. If you like sours though