VIDEO : Russo Brothers Explain Why Infinity War Was More Challenging Than Avengers 4

The release date for Avengers: Infinity War inches closer.
Every day we learn an inside tidbit about the film from it's directors The Russo Brothers.
The brother reveal that Avengers: Infinity War was more challenging to work on than its sequel.
The brothers shot the films back to back over the course of a year.
They were shooting Infinity War while prepping Avengers 4.
?I think Infinity War only because it was a compressed time frame and we were posting it while we were shooting Avengers 4."