BBC - Eight of Cinema's Greatest Love Triangles

If one's company and two's a crowd, then three must be even more complicated. That's certainly the case with love triangles, the fraught dynamics of which have often been explored in film.
As a trio of love triangle movies – Challengers, Passages and Past Lives – have hit screens in quick succession, BBC Radio 4's Screenshot asks what the hallmarks of a good three-way love story are and why the genre holds such an endearing appeal, talking to guests including Passages director Ira Sachs.
Must a love triangle be dark? Is The Notebook a good film? All these questions and more are answered as Screenshot contributor Caspar Salmon runs through eight of the steamiest examples in cinema.