A box office or ticket office is a place where tickets are sold to the public for admission to an event. Patrons may perform the transaction at a countertop, through a hole in a wall or window, or at a wicket.
By extension, the term is frequently used, especially in the context of the film industry, as a synonym for the amount of business a particular production, such as a film or theatre show, receives.
Box office business can be measured in terms of the number of tickets sold or the amount of money raised by ticket sales (revenue). The projection and analysis of these earnings is very important for the creative industries and often a source of interest for fans. This is predominant in the Hollywood movie industry.
The term is attested since 1786, presumably from sales of boxes (private seating areas in a theatre). The sense of "total sales" is attested from 1904.
A folk etymology is that this derives from Elizabethan theatre (i.e. late 16th century), where theatre admission was collected in a box attached to a long stick, passed around the audience; comparable to "bottle" in Punch and Judy, where money was collected in a bottle. However, first attestation is about 200 years later, making this highly unlikely.
Some complain that film industry focus on profit has diminished the attention given to film as an art form. However, analysis of the financial success of films is very influential for the production and funding of future works.
In December 2009, with its acquisition of Nielsen EDI for $15 million, measurement company Rentrak became the sole provider of worldwide box office ticket sales revenue and attendance information.
There are numerous websites that monitor box-office receipts, such as Boxoffice, Box Office India, Box Office Mojo, Koimoi, ShowBIZ Data and The Numbers.