Who is hurting little Amabella (Ivy George)?

Who is Ziggys (Iain Armitage) father?

Will Jane (Shailene Woodley) get her revenge?

BLL_107_Jane-and-Madeline

Credit: Hilary Bronwyn Gayle/HBO

And will Madeline (Reese Witherspoon) reveal her affair to Ed (Adam Scott)?

The fun part was putting in all these tricks.

Maybe its all between Renata and Madeline.

Or maybe it will be between Ed and Nathan (James Tupper).

Or maybe between Bonnie (Zoe Kravitz) and Madeline.

There are a lot of different scenarios and that was the beauty of the writing.

I just followed the plan.

(Yes, that is Dern in the brown Hepburn wig from the series intro.)

Vallee admits shooting the final act a 20-minute drama fest was the toughest thing hes ever done.

And this is the guy who followed Witherspoon up a mountain as the director ofWild.

Its tough emotionally but Nicole and Alex just did it.

That didnt diminish the difficulty of the scenes.

Its really difficult to see a guy beating the s out of a woman, says Vallee.

Until then, he keeps his analysis succinct: I think its great.

The finale ofBig Little Liesairs Sunday at 9 p.m. on HBO.