Scarlett Johansson
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Besson makes Scarlett superhuman

French film director Luc Besson talks about his new science fiction thriller called Lucy, starring Scarlett Johansson

French director Luc Besson has returned to science fiction with a new thriller starring Scarlett Johansson and Morgan Freeman.

Some of Besson's best-known films include Leon, The Fifth Element, The Big Blue and La Femme Nikita.

In Lucy, Scarlett Johansson stars as a young woman caught up in a dangerous drug deal that sees her inadvertently acting as a drug mule, carrying a substance that gives her superhuman abilities.

Besson told Sophie van Brugen why he wanted to make a "fun" thriller with a philosophical theme.