Factual error: On Day 3, look at The Embrey Star newspaper when it zooms into the headline. Above the headline is the newspaper's web address, hardly appropriate given the paper is from 1980.
Kiss Kiss Bang Bang (2005)
1 factual error - chronological order
Directed by: Shane Black
Starring: Robert Downey Jr., Val Kilmer, Corbin Bernsen, Michelle Monaghan
Revealing mistake: Towards the end when Harmony calls Perry's phone as she's lying on the ground, Harry grabs the phone and looks at the caller ID to see her name. Unfortunately that's not the display showing who's calling. Anyone who has a Nokia phone will recognise that that's showing the contact list with just two entries - Harmony and a random number. The fact that it says "contacts" at the top of the screen is a bit of a giveaway.
More quotes from Kiss Kiss Bang Bang
Trivia: The title was suggested by Val Kilmer - it was originally called simply "Bang!"