Avengers Endgame: Why The Directors Wanted To "Write Themselves Into A Corner"

"How did the surprise ending of Avengers: Infinity War affect the tone of Endgame in the aftermath of Thanos's destruction?"The question was posed by Iron Man director and Happy Hogan actor Jon Favreau to Joe and Anthony Russo, the brother directors shepherding the Marvel Cinematic Universe to its phase 3 conclusion with Avengers: Endgame. Favreau was moderating a Los Angeles press conference featuring the directors along with much of the cast, from Tony Stark (Robert Downey Jr.) and Captain Ame