Mrs. Bates and Miss Bates, mother and daughter in the film, are played by real-life mother and daughter Phyllida Law and Sophie Thompson (who are also real-life mother and sister to Academy-Award-winning actress and screenwriter Emma Thompson).
Emma and Mr. Knightley's dance is called "Mr. Beveridge's Maggot" (to the tune of the same name). (A "maggot" is "a whimsical fancy.") This same tune and dance were previously used in Pride and Prejudice (1995) for Elizabeth Bennet's dance with Mr. Darcy at the Netherfield Ball.
The gold overdress Juliet Stevenson (Mrs. Elton) wears at the Box Hill picnic is the same costume worn by a guest at the London party where Lord Byron meets Annabella Milbanke in Byron (2003), and by one of the dancers leaving the theatre while Amy waits for Fanny in Little Dorrit (2008).
The red and white muslin gown worn by a wedding guest is the same costume worn by Catherine Walker (Eleanor Tilney) to greet Catherine and Henry when they return from Woodston in Northanger Abbey (2007).
The blue striped dress with long sleeves Gwyneth Paltrow (Emma Woodhouse) wears at Hartfield is the same gown worn by a guest at the Towers in the opening scene of Wives and Daughters (1999), and by Mali Harries (Ann Rood) for her wedding in Byron (2003). The same costume is also worn by one of the maids at Chawton Cottage in Miss Austen Regrets (2008), and by Laura Pyper (Jane Fairfax) while reading a letter in Emma (2009).