a 2.2 multiplier will be weaker.
I'd suggest that BWs are issued based on the expectation that the movie will earn more than $100 million at the box office. If it's definite (eg DEADP) then the BW gets a quick IPO - in the week after its second weekend. If it's marginal (eg PAND3) then it's wait-and-see mode until it looks like the movie will pass $100m by an amount that makes it worth issuing a BW.