Released here in February 1995, the Gary Oldman / Natalie Portman thriller Léon will never be bettered for powerful action by its writer, director and producer Luc Besson.

That is perhaps the biggest reason why the otherwise prolific Frenchman has only personally shot nine films since. 

But Lucy is his best directing effort in 20 years with the hard-working Scarlett Johansson on top form as an unwittingly kidnapped girl who becomes a drug mule.

Being exposed to the ultra powerful CPH4 leads to Lucy developing amazing cerebral powers – albeit ones which might only last for a few days.

Meanwhile, the world-leading authority Prof Norman (Morgan Freeman) is addressing a conference about how humans only use ten per cent of their brain power – higher than most creatures but still only half that of a dolphin.

After years of suffering so many yawn-inducing Jennifer Aniston and Cameron Diaz movies, it’s great to see youngsters like The Avengers’ star Johansson, still only 29, more than holding her own as a serious actress having the fun of fusing Frankenstein with Total Recall.

Freeman, of course, is his usual effortless self and the film around him is a perfectly economical 89 minutes as our heroine’s brain function keeps expanding towards 100 per cent of its mind-boggling potential.

Lucy is pacy and often visually jaw-dropping with emotive scenes that will have you dredging up some of your own long lost memories.

While lacking in genuine peril, but thrillingly powered by the fact that Lucy has never driven before, a technically inventive car chase adds to the Parisian legend of John Frankenheimer’s Ronin (1998).

There’s also much to admire about the marvellous cinematography by Thierry Arbogast (Nikita) and the brilliant sound rocks – qualities which will be done full justice in IMAX and other high-powered screens.