they contacted thanos at the end of avengers infinity war.
who did they contact at the end of avengers infinity war?
thanos
unlike "infinity war", "avengers: endgame" features mainly an original story that does not draw inspiration from any existing comics. joe russo explained, "i think we're in pretty fresh territory with "avengers 4". if anything, i think it's interesting after to go back and look at some of the marvel films and view them through a different lens. but i can't think of any comics in particular that would have value" to give a basis for the film's story. joe russo also described the second film as "more of an epic adventure in the classic sense, with huge emotional stakes". hope van dyne / wasp and carol danvers / captain marvel both only appear in the sequel, in order to preserve their debuts in "ant-man and the wasp" and "captain marvel", respectively, which were released between "infinity war" and "endgame". other characters, such as hawkeye and ant-man, were excluded in "infinity war" for "a very specific story choice". joe russo said "we have a really interesting story cooked up for both of those characters, and part of that story required that they be under house arrest [in "infinity war"]." the russos also revealed that, despite not appearing in "infinity war", the events of the film killed betty ross and sif, previously portrayed in the mcu by liv tyler and jaimie alexander, respectively.
production of avengers: infinity war and avengers: endgame
in july 2014, feige stated that there were "some notions" to where marvel would want to take a third avengers film and that the studio was aiming for three years between "avengers: age of ultron" in 2015 and a sequel. in october 2014, marvel announced a two-part sequel to "age of ultron", titled "avengers: infinity war". "part 1" was scheduled to be released on may 4, 2018, and "part 2" was scheduled for may 3, 2019, with the two films filming back-to-back. in january 2015, whedon stated that it was "very doubtful" that he would be involved with the two "infinity war" films. by april, anthony and joe russo had reached a deal to direct both parts of "avengers: infinity war", after directing "" and "". whedon cited the series' increasing scale as to why he chose not to return, explaining, "every movie i have ever made has been an ensemble piece of increasingly enormous proportions... that many balls in the air, it's only going to get bigger with "infinity war". i'm not going to be able to give it what i would need to." at the end of the month, chris evans, who portrays captain america in the mcu, revealed that filming was now scheduled to begin in late 2016 over nine months, lasting until august or september 2017, after previously being scheduled to begin in late 2015. by may 2015, christopher markus and stephen mcfeely had signed on to also return from the "captain america" films, writing the screenplays for both parts of the film. anthony russo described the two "avengers" sequels as "the culmination of everything that has happened in the mcu" since "iron man" was released in 2008, bringing "an end to certain things, and in some ways... the beginning of certain things".
production of avengers: infinity war and avengers: endgame