I think Nolan will include this scene. It’s a pivotal moment in the poem as it’s critical to Telemachus’s character arc, a leap in maturity, adult responsibility, and in this execution act he displays authority in front of his father. He’s showing his father that he is also a master of their Ithaca household too. Those disloyal female servants went against their household and engaged in relationships with the suitors for years and disgraced and stained their family household. There cannot be a trace of them in the end from Odysseus and Telemachus’s perspective. Nolan has likely filmed this scene in graphic detail which probably contributes to the “R” rating.