Roadshow theatrical release
A roadshow theatrical release or reserved-seat engagement is the practice of opening a film in a limited number of theaters in major cities for a specific period of time before or after the wide release of the film. Roadshows would generally mimic a live theatre production, with an upscale atmosphere, as well as somewhat higher prices than during a wide release.
Source: Wikipedia — Roadshow theatrical release (CC BY-SA 4.0)