Over the years, we’ve watched the Crawley family weather world wars, opulent balls, romance, death, and evolving social and cultural landscapes. Now, we’ve reached Downton Abbey ’s grand finale—for real this time. After 52 episodes across six seasons of television and two feature films , a third one, Downton Abbey: The Grand Finale (in theaters Friday) marks the final act of Julian Fellowes’s cultural juggernaut of a British period drama.

Michelle Dockery has played Lady Mary, the eldest daughter of the Earl of Grantham, for 15 years. Now, she’s just about ready to leave Lady Mary in the Downton Abbey foyer.

Last week, Dockery walked the red carpet at the film’s world premiere in London, revealing a baby bump under her soft blue custom Prada gown. (She is expecting her first chil

See Full Page