講演の合間に、先生は留学時代の余話を披露した。
Between parts of the lecture, the professor shared some stories from his time studying abroad.
この本には幕末の志士たちにまつわる余話が数多く収められている。
This book contains many little-known stories about the activists of the late Edo period.
映画の撮影をめぐる余話が雑誌で紹介された。
A magazine ran some behind-the-scenes stories about the making of the film.