How do movies that gross many millions of dollars over their budget still result in the production company losing money?

Question

For example- I looked at The Mummy (2017) on Wikipedia, which had a budget of $125-195 million, and grossed $410 million worldwide at the box office, yet it also says the studio lost $95 million. How is that possible?

In: 99

Answer 1

A movie costs $100 million to make and then they spend another $100 million advertising it.