In the Amazon dramedy  “Étoile,” a ballet company in New York and another in Paris swap some of their talent for a season, hoping the gimmick will sell more tickets and fix some financial struggles.

A choreographer and his muse is a tried-and-true relationship trope — one that gets a new twist in Étoile. The new series, ...

Netflix’s Sirens is based around a concept anyone who’s seen that one recruitment video will deeply understand: ...