i just watched "the net" with sandra bullock and throughout the movie she is frequently being traced on cell phones, internet connections, etc. some things in the movie seemed pretty authentic, at one point she covers her tracks at one point by connecting through a chain of other servers. so, i was wondering:

1. how quickly can an internet connection be traced to an address(in the movie it was about 10 seconds)? and what's the general process to trace them? is the only way to figure out what isp it belongs to and then ask them?

2. with cell phones, i've heard of being able to tell the general area of where somebody is based on what cell they're in, but in the movie they were like sending "pulses" to her phone in real time and were able to tell her location down to a couple of feet. is that realisitc?