Warning: Spoilers ahead for "The OA" season one.

Netflix's polarizing sci-fi drama "The OA" is one of the most ambitious and divisive projects released by the streaming service. From the complicated season finale shooting scene to the mystical "movements" (choreographed by Sia's music video magician Ryan Heffington), there is plenty to be unpacked after experiencing the journey of OA.

Keep reading for a look at the 13 most important details you probably missed.