At least in the markets I'm looking at (Canadian), WF can certainly surpass 80% of MoM's Thursday box office with these walk-ups (29M equivalent). Heck, if these numbers translate across the board, I wouldn't be shocked if this comes close to 30M on Thursday. And this is in CANADA, where the first BP wasn't nearly as big as it was in the States!
Caveat, Remembrance Day may be causing Thursday to behave slightly more like a Friday night than usual, something which MoM didn't have. Still, really impressive numbers so far.