About halfway through this world premiere, I realised what was missing. Where is the sinister lift, where are the long corridors and, most of all, WHERE IS MR. MILCHICK? 50 First Dates: The Musical may indeed be the sunnier cousin of Severance, but it’s also much older, tracing its roots back to the mid-hit movie of the same name.

Like the lighting that crackles now and again to indicate an abrupt change of scene or mood, Simon Stone's version of The Lady from the Sea is illuminated by the sense of adventure and excitement one has come to expect from this singular artist. That's the case even if the cumulative effect falls short of his devastating achievements with the National Theatre's Phaedra or, before that, Billie Piper in Yerma. 

Somehow both rugged and smooth, embodying American values yet often turning up his collar against them, Robert Redford – who died on 16 September, aged 89 – was one of the biggest movie stars of the post-war period, as well as a stalwart, transformative supporter of independent film.

After 76 years, you’d have thought they could’ve come up with a better story! Okay, that’s a cheap jibe and, given the elusive nature of really strong books in stage musicals, not quite as straightforward as meets the eye.

More of that later and, let’s be honest here, nobody is relaxing back into some of the country’s most comfy theatre seats expecting to attend the tale of Sweeney Todd, are they?

It seems a bizarre idea. Take a pivotal film in American culture that reset the perception of The Great American Dream at this, obviously, pivotal moment in American culture in which The Great American Dream, for millions, is being literally swiped away at gunpoint, And… make it into a musical? 

This Celine Dion jukebox musical has been a big hit in New York, but crossing The Atlantic can be perilous for any production, so, docked now at the Criterion Theatre, does it sink or float?

It might be a push to call this documentary a feminist slant on Humphrey Bogart, but it wouldn’t quite be a shove. Northern Irish filmmaker Kathryn Ferguson’s work has often concerned itself with identity and gender politics, and her narrative here is framed around the women in Bogart’s life, starting with his aloof, undemonstrative mother, Maud. 

What is it about Humphrey Bogart? Why does he still spark interest, still feel relevant, so many decades after his death? It’s a complex question and may be impossible to satisfactorily answer, but there’s no doubt that Bogart being one half of Hollywood’s most famous love story has had something to do with it.

The clue is in the title – not Then in America or Over There in America or even a more apposite, if more misleading, Now in America, but an urgent, pin you to the wall and stick a finger in your face, Here in America.

When entering a particular, well-populated region of MusicalTheatreLand, one has to check in a few items at the border. Weary cynicism, the desire for narrative coherence, that nerve that starts to throb when sentimentality oozes across the fourth wall – all need to be left behind. Like pantomime and opera, if you bring those attitudes with you, a dry desert is all you will see, but if you buy in, sometimes, not always, you’ll find oases too.