This film - starring Will Smith is a work derived from a collection of stories by Isaac Asimov - entitled "I Robot". It combines a number of these stories- for example "Little Lost Robot" (with the fact they are using NS-5's - nestors - and the step out scene).

This film has been met with a boycott by many Asimov fans. While I do not think the film deserves the namesake of Asimov, taken away from that context- it is still not a bad film.

I will not spoil too much of the plot - but this film is neither robot as menace, or robot as friend - it likes to show both sides of the coin.

There is some great CG, and Will Smith actually takes this role a little more seriously than many other films I have seen him in.
Important robot characters are:

The good Doctor Susan Calvin - a character who featuresd widely in Asimov's stories as a "robopsychologist" - and is normally more comfortable with robot company than human company. In the film she was shown as being a bit less cold than she is the books - but in the books she is shown to be a little vulnerable..

Lawrence Robertson - the director of US Robotics - also features in a number of Asimov books - though he is never depicted as the megalomaniac that he is in the film in the books, he often has heated debates with Dr Lanning and Dr Calvin.

Dr Alfred Lanning - He is an important and central character in the film, and he is often in the books layout out the designs for new positronic brains.

The character Del Spooner - afaik is not an original Asimov character. I wonder if Donovan and Powell were considered?

I feel Holywood could not have stuck to original Asimov ideas as they may not translate very well to epic feature flics - more to cult sf series if made in the screen format. It is fair to point out the original working title for the film was "Hardwired", and it was only later altered to include the Asmimov references. It is quite possible that the original script, and screenplay did a great deal more justice to its license - and was probably altered to be more action packed by some hairbrained cable-award guy.

Perhaps - a better option is the I, Robot Illustrated Screenplay - which made into a movie would have been more acceptable to Asimov fans, but not grossed the income at the box-office. The screenplay version had more cult potential though...