Spot on. en.wikipedia.org/…/List_of_highest-grossing_R-rat…

That list isn’t adjusted for inflation, unfortunately, so the rankings aren’t entirely fair. Two things stood out to me, though. The early 00’s were a little sparse on R-rated hits (you have to go all the way down to #20 before they start to become more common). And 1991’s Terminator 2, adjusted for inflation, surpassed Passion of the Christ by $100,000,000, despite only being #18 (after PotC’s #10).

A short list further down the page shows only the timeline of highest grossing R-rated movies at their time of release. PotC is obviously absent from that list.