Although the Marvel Cinematic Universe Infinity War movies (coming 2018 and 2019 respectively) aren't actually going to be based on the Infinity Gauntlet comic book arc, they will undoubtedly take elements from it.
Thanos will be wielding the six Infinity Stones and will launch an assault on the universe. It will be up to the heroes of the MCU to stand up to him, just like they did in the comic.
There are some scenes from the aforementioned comic book arc that really should be adapted onto the big screen – simply because they were so great and/or iconic.
There are, of course, some scenes from the arc that we really don't want to see in the movies (the Mad Titan working on a farm at the end, for example), but here are six that we do.
Adam Warlock Warns Doctor Strange
In the Infinity War comic book arc, Adam Warlock arrived on Earth to warn the heroes (and indeed some villains) that Thanos was about to launch his assault on the universe. Specifically, he arrived in Doctor Strange's Sanctum Sanctorum to warn the Sorcerer Supreme, but other characters happened to be present there at the time.
It was a key scene on panel, but it would be extremely exciting on screen as it would represent the first real connection between the characters seen in the Avengers movies and those seen in the Guardians of the Galaxy movies.
It would be indicative of the fact that a number of our favourite Earth-based heroes (Iron Man, Captain America and Hulk et al) were on the verge of meeting the space-based heroes (Star-Lord, Rocket Raccoon and Groot et al) for the first time.
Some of the characters present would have to differ (no Doctor Doom or Silver Surfer, for example), but the sentiments of the scene would be the same.