In Marvel Cinematic Universe terms, it's all been leading to this. Positioned as the epic finale to an interconnected series of twenty-two films beginning with 2008's "Iron Man," "Avengers: Endgame" traverses a startling amount of territory in an enrapturing and—all things considered—economical 182 minutes. Said territory, however, will likely not match up with what most dedicated viewers will be expecting. This is key to the giddy ingenuity directors Anthony Russo & Joe Russo and screenwriters Christopher Markus & Stephen McFeely (the four returning for duty following 2018's "Avengers: Infinity War") have cooked up, all previous trailers and advertising barely hinting at the narrative twists and turns and the oft-surprising places the exorbitant ensemble of characters find themselves. Indeed, in a eagerly awaited blockbuster such as this, it is crucial to retain the secrets held within—a challenge for any writer endeavoring to review the picture, but also a necessity.
See Dustin Putman, TheFilmFile.com. for full review