Major problem with this movie, just noticed it after 20 viewings
I've seen all or most of I, Robot at least 20 times. But today watching it I noticed a major problem with the film.
Near the end, when they decided to use the Nanites to kill VIKI, Sonny talks about having a denser alloy to get through the security field storing the Nanites. He reaches in, grabs a vial and has it filled with Nanites. They then cut away.
How did he get the glass vial out through the security field? No way would the glass have survived it.