Frantic first trailer for Lucy

We use roughly 10 percent of our brain capacity. About eight if we've not had any coffee. Think how different life would be if we bumped things up to 20 percent - or even 50. We'd probably be able to remember our entire family's birthdays.

That's the premise for sci-fi action romp Lucy. Penned and directed by Luc Besson (The Transporter, Taken), Scarlett Johansson stars as the titular drug mule-turned-superhuman. After a mysterious cargo of drugs is stitched into her chest against her will, Lucy's fate takes an even stranger turn when one of the packages splits and unlocks a raft of supernatural abilities. As she begins to unlock hitherto dormant regions of her brain, she gains new intellectual, temporal and even telekinetic powers.

With a cast including Analeigh Tipton and Morgan Freeman (playing yet another "science guy who warns people about things they can't comprehend"), Lucy looks like takes some familiar sci-fi tropes to interesting, violent places. Check out the trailer for a taste of the action.

Lucy arrives in UK cinemas on 22 August

(Image: YouTube)