Oliver Walston investigates his mother Catherine's 20-year relationship with the writer Graham Greene, which gave rise to Greene's famous novel The End of the Affair, twice adapted as a feature film. The documentary follows the second film during its production, where screenwriter/director Neil Jordan and stars Ralph Fiennes and Julianne Moore offer their personal perspectives on the novel's continuing resonance.
| Actor | Role |
|---|---|
 Ralph FiennesSelf | Self |
 Julianne MooreSelf | Self |
 Neil JordanSelf | Self |
 Juliet StevensonReadings (voice) | Readings (voice) |
 Paul RyanReadings (voice) | Readings (voice) |