[WastingMyTime89]

This is established IP in an adjacent media. Marvel first line of business used to be comics which in turn generated sales for tie-in products. In this context it was probably relatively easy to see how much these IP made every year.

[amscanne]

Ironically, I was reading about this last night. The loan was collateralized on the movie rights only. But the market had been proven by that point.

[mulmen]

Makes sense. The value is based on the IP assuming there is no successful movie franchise. Probably with some risk calculation as to the probability that the films would be successful.