Swimming Pool
4/5

Here is a summary of the 2003 film Swimming Pool along with the YouTube embed code for its trailer:
Swimming Pool (2003) — Movie Summary
Swimming Pool, directed by François Ozon and starring Charlotte Rampling and Ludivine Sagnier, is an erotic psychological thriller about creative obsession and blurred realities.
Sarah Morton (Charlotte Rampling), a successful but burnt-out British mystery novelist, travels to her publisher's secluded house in the South of France to overcome writer's block and work on her next book. Her quiet retreat is suddenly disrupted by the arrival of Julie (Ludivine Sagnier), the publisher's carefree, reckless teenage daughter.
Initially clashed by Julie's uninhibited lifestyle and frequent romantic encounters, Sarah becomes increasingly fascinated and secretly inspired by her. As Sarah begins integrating elements of Julie's life into her new novel, the dynamic between the two women shifts into an uneasy bond—especially after a mysterious crime takes place by the villa's swimming pool, blurring the line between fiction and reality.
Trailer
Trailer Link: Swimming Pool - Official Trailer