The play looks set to be a commercial hit. The first 175,000 tickets sold within 24 hours in October, and the script is already a bestseller before it has even been published.
But the decision to split the play into two parts, watched in a day or on consecutive nights, has raised some eyebrows.
Tickets for both performances range between pound sterling30 and pound sterling130 ($44 and $189, 38 and 166 euros) in total.