Factual error: Near the end, there's a scene where they are sitting in their car, and behind them is a late 80's early 90's GMC van (black).
Factual error: The poster of Paul Simonon of The Clash in Holly's bedroom was neither captured nor made famous on the sleeve of 'London Calling' until 1979; the Nice Guys is set in 1977. (01:13:00)
Holland March: Got a cool ad though. I made your head small because I know you're sensitive about how big it is.