Scientists ponder exoskeletons

Iron Man suit in movie may look cooler than real-life version

In the US movie Iron Man, businessman Tony Stark developed a robotic suit that gave him inexhaustible power to fight the bad guys.

The reality of the suit, however, was that it was so heavy and unwieldy that even actor Don Cheadle in Iron Man 3 complained that it was "not really cool at all" to play a superhero in the suit.