![Britain's Duchess of Cambridge smiles as she meets members of the cast on the set of British television series Downton Abbey at Ealing Studios in west London on March 12, 2015.](https://media.cnn.com/api/v1/images/stellar/prod/150312133048-duchess-downton-abbey-1.jpg?q=w_1500,h_960,x_0,y_0,c_fill/h_447)
Britain's Duchess of Cambridge smiles as she meets members of the cast on the set of British television series Downton Abbey at Ealing Studios in west London on March 12, 2015.
![Catherine receives flowers from young actor Zac Barker.](https://media.cnn.com/api/v1/images/stellar/prod/150312133717-duchess-downton-abbey-5.jpg?q=w_2796,h_1886,x_0,y_0,c_fill/h_447)
Catherine receives flowers from young actor Zac Barker.
![The Duchess meets British screenwriter Julian Fellowes -- the creator of the hit television series.](https://media.cnn.com/api/v1/images/stellar/prod/150312133527-duchess-downton-abbey-4.jpg?q=w_2103,h_1568,x_0,y_0,c_fill/h_447)
The Duchess meets British screenwriter Julian Fellowes -- the creator of the hit television series.
![Catherine is shown the Downton Abbey servant's bells by actor Brendan Coyle (John Bates).](https://media.cnn.com/api/v1/images/stellar/prod/150312133200-duchess-downton-abbey-2.jpg?q=w_4216,h_3088,x_0,y_0,c_fill/h_447)
Catherine is shown the Downton Abbey servant's bells by actor Brendan Coyle (John Bates).
![Catherine poses with the cast, crew and producers of the show.](https://media.cnn.com/api/v1/images/stellar/prod/150312133404-duchess-downton-abbey-3.jpg?q=w_4528,h_3040,x_0,y_0,c_fill/h_447)
Catherine poses with the cast, crew and producers of the show.
![Catherine walks out of a make-up trailer.](https://media.cnn.com/api/v1/images/stellar/prod/150312133934-duchess-downton-abbey-6.jpg?q=w_2819,h_2002,x_0,y_0,c_fill/h_447)
Catherine walks out of a make-up trailer.