The 'One Does Not Simply' meme features Boromir, portrayed by Sean Bean, during the Council of Elrond in the 2001 film The Lord of the Rings: The Fellowship of the Ring. While discussing the plan to destroy the One Ring, Boromir famously declares that entering Sauron's territory is an impossible feat. The image of him making a circular gesture with his hand became an internet sensation in the mid-2000s. It evolved into a 'snowclone,' where the phrase 'One does not simply walk into Mordor' is adapted to fit any scenario that is unexpectedly difficult or complex, maintaining its status as one of the most classic and recognizable memes in history.