Writer-director M. Night Shyamalan returns with this sequel to his 2016 film Split, which also incorporates Bruce Willis and Samuel L Jackson’s characters from his classic 2000 film Unbreakable.

Following the mouth-watering post credits scene in Split, which revealed the two films were set in the same universe, we find Willis’s David Dunn on the trail of James McAvoy’s Kevin Wendell Crumb and his plethora of different personalities.

Meanwhile the shadowy presence of Jackson’s Mr Glass attempts to orchestrate the destiny of both men.

Anya Taylor-Joy also reprises her role as Casey, Crumbs surviving victim from Split, while Spencer Treat Clark returns as Dunn’s now grown-up son Joseph.

After an early altercation between Crumb and Dunn, the pair are captured and sent to a psychiatric hospital, where Sarah Paulson’s Dr Ellie Staple attempts to convince both men their ‘powers’ are merely delusions of grandeur.

Paulson is arguably the best thing about the film, which is otherwise a tedious affair with far too much exposition and monologuing.

The film’s main focus is on McAvoy but unlike in Split, his multiple personality shtick gets irritating rather quickly.

Jackson’s return to the role of Elijah Price AKA Mr Glass is mostly enjoyable but Willis is used only sparingly and is reduced to the role of bystander.

As usual for a Shyamalan film, it does have some visually striking and inventive shots, but it is the clunky script that lets the film down.

The plot’s comic book roots are rammed home over and over and explained ad nauseam just incase the audience was unaware.

When the film finally kicks into gear and Mr Glass’s master plan is revealed, it is nowhere near as clever as Shyamalan thinks it is and makes very little sense.

This results in an anti-climactic conclusion to the film and the series.

As a trilogy these films have decreased in quality ever since the excellent Unbreakable, and Glass is very much the poor relation of the three.

Diehard fans will hopefully find something to like, but unfortunately this reviewer is a Glass half-empty guy.

Glass is showing at Stowmarket Regal from Friday, February 15, to Monday, February 18.