The question is not so much why they’re back for a big-screen sequel, but why it’s taken so long.

But, after various copyright problems, the wait is over. ‘Tap II’ is here. And it’s worth the wait.

One of the many good portents for ‘Tap 2’ was the fact that Rob Reiner was returning to direct and co-star as Marty DiBergi. You know you’re in the hands of a master. Then there’s the fact that all surviving original cast members are present and correct, and that their improvisational modus operandi is basically intact.

Your correspondent is not going to reveal any of the many pleasant surprises from the movie, such as the return of various secondary characters from the first film (and appearances from four or five big rock stars), but suffice it to say that the plot is a little like ‘Anvil! The Story Of Anvil’.

A contract clause dictated by band manager Ian Faith before his death states that Tap must do one final comeback concert. The only problem is that the three surviving members of Tap (Nigel Tufnel, David St Hubbins, Derek Smalls) are at loggerheads and haven’t seen each other for years.

We find Nigel selling cheese and guitars in Berwick-upon-Tweed (just the sight of him wearing shopkeeper’s hat and overall is worth the price of admission alone), David making ‘on-hold’ music and Derek running a glue museum.

Various scenes from the first film are mirrored here, and they even use the same font for the onscreen graphics. Thank goodness too they mostly stay away from ‘dark’ comedy. There are few concessions to identity politics, and the humour is basically quite sweet (but agreeably foul-mouthed). These are some seriously old dudes trying to rock out again.

The casting once again nods to a richly-observed Anglophilia with Chris Addison hilarious as the hapless/humourless marketing man, a mixture of Simon Cowell and Simon Fuller, and Kerry Godilman doing fine as Ian Faith’s Sharon Osbourne-like daughter.

Once again they’ve got the music spot-on too, showing the detail you’d expect from real music fans and good musicians – you won’t find any poorly-sync’d snare hits from the drummer here. It looks like they played and sung everything live with multiple cameras running.

One small gripe? The actual band reunion scene is a bit flat and looks like it may have been the victim of some rather severe editing. But that’s nitpicking, isn’t it?

So Tap fans – there’s nothing to fear here. Go to ‘The End Continues’ with confidence. At 80 minutes, it’s a perfect length and sticks in the head afterwards. There’s little ‘learning’, just laughs. This writer chuckled approximately every 20 seconds. Looking forward to the DVD extras, there must be hours of extra improvisations.