Characters in the movie routinely "clone" cellphones, listen in remotely via the microphones in phones, track people in real time via the GPS technology in their handsets, " " phones, and download contacts and other information wirelessly.

One character has a supercomputer; the other has super-ninja fighting skills. But their most effective superpowers are their mobile phone skills.

How realistic is all this? Let's have a look.

Cloning enables a phone to make and receive calls that appear to be coming from another phone.