Principal filming was completed in 18 days of shooting.
Most of the motorcycle helmets that were proposed made Olga Kurylenko's head look too bulbous so an extensive search was required to find one that didn't make her look too top-heavy.
The "Il dolce suono" ("The Sweet Sound") opera song was famously used in Gary Oldman's 1997 hit, The Fifth Element (1997), as well as the house arrest scene in The Courier.
The courier rides a BMW S1000R.