A vital theatrical partnership gets renewed, and then some, in Jamie Lloyd's revival of Passion, a transforming production that not only marks the start of various Donmar-related tributes to Stephen Sondheim in his 80th birthday year but also reminds us that this theatre reopened its doors in 1992 with the UK premiere of Assassins, since which time it has staged five further Sondheim shows; Passion, to speak as openly as this musical's heroine does of the

Sometimes people leave you halfway through the wood. Sondheim meant that in a life-and-death kind of way, but it applied literally to this ingenious show at the autumnal August preview I attended. Some folk thought Act One’s knitting-up of polyphonic fairy-tale lines really was the happy end. Others found unseasonable damp gnawing their bones and slunk off to comforting warmth. Don’t go, I pleaded, it gets deliciously darker.

Everybody in the business says don’t think Sondheim is easy. I’ve seen galas where big names stumbled in under-rehearsed numbers, and last night Bryn Terfel and Maria Friedman slipped and almost fell on the same banana skins that had done for them in a hastily semi-staged Sweeney Todd. Not enough to matter, though, and they rightly brought the house down. And the show as a whole?

There's bizarre, and then there's Paradise Found, a new musical that falls so short of the not always clearly defined mark that audiences may likely be mulling over what went wrong for years. What do the two acts have to do with one another? What in heaven's name is the point? How much weight in water is leading man Mandy Patinkin losing per performance? Those are just a few of the questions spectators will be left pondering during what for many will nonetheless be essential viewing, notwithstanding the show's self-evidently inchoate status.

Broadway tends to go into overdrive in May, that time of the theatrical year when New York stages are at their buzziest in the run-up to the Tony Awards (to be awarded on 13 June).

Commissioned by Josef Weinberger Ltd on the occasion of Stephen Sondheim’s 80th birthday today, In Good Company is a unique three-part collage of intimate conversations I have had with some of Sondheim’s closest colleagues and collaborators.