There's A Good Reason Fleur From Harry Potter Looks Familiar

Clémence Poésy has plenty of acting credits on her IMDb page, which also shows she's been working fairly consistently for many years. While Poésy has appeared in several French films, American audiences would likely recognize her mostly from her roles in 127 Hours (2010) and Tenet (2020). Gossip Girl fans would also recognize Poésy as Chuck Bass' French girlfriend from the series' fourth season (via PopSugar).

Poésy has also worked as a model, notably as the face of Chloé for their Love Story perfume (via The Telegraph). 

Though Harry Potter fans might always remember her as the formidable and beautiful witch who knocked Ron off his feet in her first appearance in the series and ultimately married his older brother, Bill, Poésy's stable Hollywood career is impressive in its own right (via ScreenRant).