Ultimately, whether a $50 or $60 million opener will be enough to propel Dumbo to a box office win depends on a lot of factors: How much was the budget?
Can it stay competitive for several weeks as April releases start coming out?
Most of Disney’s live action movies have had budgets in the $100 million+ range and movies like Maleficent have been closer to $180 million (although Pete’s Dragon was reportedly made for much less than $100 million).
Are people seeing the movie elsewhere in the world?