A long-held dream of Sydney Theatre Company's power couple, Cate Blanchett and Andrew Upton, came true yesterday, with the offer of some tickets priced at $20 for almost every show.

Upton, the company's artistic director, said the high cost of theatre tickets - up to $90 at the STC - gave the impression that theatre was elitist.

Actor, Cate Blanchett and Andrew Upton, STC Artistic Director after the announcement of the Suncorp Twenties sponsorship. Credit:Marco Del Grande

''Many people see theatre as too expensive or exclusive and actually the production of theatre is of course a massive undertaking,'' he said.

''But for $20 it's a chance, for basically the price of a cinema ticket, to say to yourself, 'I'll see that play.'''