When Thomas visits, to deliver vegetables, he specifically mentions the rutabaga. The term rutabaga only exists in North American English. The rest of the world knows it as a Swede, Swedish turnip, or simply turnip. Even in North America it is also commonly referred to as a Swedish turnip. As a European, Thomas would never call is a rutabaga.
When Vivian is singing "Material Girl" by Madonna, it's obvious that she is lip-syncing.
Although the film is set in the 19th century, angle grinders are powered with electricity.