Joe and Anthony Russo, directors of "Avengers: Infinity War," share how they assembled more than 20 of the most popular superheroes on the big screen for the first time in Atlanta and Edinburgh, Scotland, and returned to Wakanda for Marvel Studios' next big blockbuster. In an exclusive interview with Marriott TRAVELER, the hotel industry's most popular online travel magazine, the Russo brothers admit to the pressure to produce a movie that satisfies fans of Marvel's previous movies, and how travel helped bring their vision to life. "Everybody involved with this movie knows what a unique opportunity it is," says Anthony Russo. "They know a movie like this has never been made before and they know part of its creative appeal is that we're dealing with a larger number of loved characters than have ever been assembled on film. All the actors brought their best collaborative energy to the table."