Christopher Nolan tends to make beautiful IMAX films like Inception or The Dark Knight, and he supposedly put in a lot of effort to simulate a nuclear blast using physical effects and not CG by using massive amounts of dynamite, so people are excited.

Barbie movie is made by Greta Gerwig and the trailer made it out to be a smart satire of the Barbie concept with Margot Robbie and Ryan Gosling as Barbie and Ken. Also they used so much pink paint for the sets that it caused a nationwide shortage of that color (of that one brand only).

Both have a lot of hype and are expected to be top movies of the summer. They happen to overlap on the same opening weekend, which is amusing since they’re such different movies.