Everybody knew it was going to beat out Mad Max. R rated movies from 40 year old franchises don’t beat PG-13 rated movies from 3 year old franchises. Though MM is a better movie, with probably a lot less of that supposed feminism. It’s not a license to print money.
Fury Road is getting the best word of mouth of any film in recent memory. It’s going to have a long run and it will make a lot of money.