The Gallerist
When does Intermediate Scoring happen, and does it repeat?
The rulebook says Intermediate Scoring happens once, when the last ticket of one color is taken; the designer adds that timing varies.
Once per game, at the end of the turn in which the first ticket colour is used up in the box office. Later colours running out don't trigger it again, and there's no fixed timing; it can come early or very late depending on how tickets get used.