I've had some pretty nasty curling with my film before, but I can somehow manage to coax it onto the spool. Sometimes I wind up pulling the lead portion into the reel until I get almost a full wrap on it, then slowly rock the reel for the remainder. I've spent a half-hour at least with some films, I don't have a lot of patience but the film eventually obeys. It can certainly be an exercise in frustration.

Sorry I can't give more advice.