The Net

When Jack (Jeremy Northam) wraps his handkerchief around Angela's (Sandra Bullock's) bare midriff, it borrows directly from the Alfred Hitchcock thriller Notorious (1946), wherein Cary Grant does the same thing to Ingrid Bergman, cautioning her that without it, she might catch cold.

When searching for Praetorian, Angela searches for the owner of IP address: 24.75.345.200 This address would be impossible on the Internet because no subnet address can be greater than 255. This has been reported as a goof, but it was surely deliberate by the filmmakers. It would be very poor practice to show a genuine, usable IP address, because the present or future owner of that address would undoubtedly be subject to massive flooding, ranging from spam to actual malicious hacking attempts. This writer noted the same fact at "Swordfish" in the Trivia section, http://www.imdb.com/title/tt0244244/trivia.

Edited into Twizzlers: The Movie (2015)