Steven Spielberg's A.I.: Artificial Intelligence is a return to sci-fi in true form.

One of Spielberg's most ambitious and problematic films, a result of trying to blend two divergent sensibilities, his and Kubrick's, but as a sci-fi, it has both thematic and visual merits.

The demands of the story would have been better served by Kubrick.

[The] middle section [of A.I.] contains perhaps Spielberg's finest work, ever.

Although the film itself and its immaculate pacing keeps us believing his love is real – it is impossible to be intellectually honest and come to that conclusion.

It turns out that Kubrick was right. The problems this story presented couldn’t be solved after all.

Striking in looks but peculiarly disturbing in tone, the futuristic tale that began as a Kubrick project and finished under writer-director Spielberg is more nightmare than feel-good fantasy.

From Kubrickese to Spielbergian, something got lost in the translation. What could have been a dark but brilliant film drags on until it finds some kind of happy ending

Spielberg's insistence on labouring the Pinocchio resonance becomes extremely jarring, and nostalgia for the wide-eyed charm of his 1982 masterpiece 'E.T.' strengthens as the film staggers to its over-wrought climax.

An apt tribute to Kubrick, blending a fascinating subject with unsettling imagery.