The follow-up to season one was announced a year ago with a blink-and-you'll-miss-it promotional video. With still no sign of 'Part II' on the streaming platform, lead actor Marling has shed some light on the whereabouts of Netflix's cult favourite.

Marling took to her Instagram to write a rather hefty update to put fans minds at rest. Although the upcoming season is still a work in progress, she confirmed that the team have wrapped on sound mixing. She explained the intricacies involved with 'The OA' that many other TV series don't have to worry about.

Marling said, "TV shows are created on a yearly cycle primarily because they function off a pattern narrative. The show creator acts as a master tailor – she crafts the pattern for the original garment (pilot).

"Then other great tailors come in and create new garments out of this same pattern. This allows for creation with great speed and also familiarity, which is one of the things we all love about great TV."

She continued by explaining how 'The OA' differs from a regular TV show, saying "our chapters vary in length, scope, and even genre. There is no pattern. As a result, at every step along the way nothing can be imitated, it has to be invented."

The Netflix show is an original story, created by Marling and Zal Batmanglij. As she works as the lead actor and also one of the writers, the series takes time to come together. She said "we are drawing from just our imaginations every time we go to write a new part, and that takes time."

If you want to see Marling's full post, have a read of it below:

'The OA Part II' is due for release on Netflix sometime in 2019.