Complex sentence: During their conversation, Mrs. Docherty says to her husband that Nanny McPhee hates goodbyes and that she remembers from when she was young, taking out her old rattle, revealing that she was baby Aggie from the first film.
Split into simpler sentences: During their conversation, Mrs. Docherty says to Mr. Docherty that Nanny McPhee hates goodbyes and that she remembers from when she was young. She then takes out a rattle, revealing that she is baby Aggie from the first film.