Episode #1.4 - S1-E4
Revealing mistake: Mrs. Weston's baby is obviously a doll.
Emma (2009)
1 revealing mistake - chronological order
Starring: Michael Gambon, Jonny Lee Miller, Romola Garai, Jodhi May
Continuity mistake: Harriet's bedroom appears to be in Hartford rather than Mrs. Goddard's school. In the scenes shot inside Harriet's room, we see that she has a distinctive window that is a square set within a circle. In shots of the exterior of Hartford, that window is visible, while shots of the exterior of Mrs. Goddard's show a building without features that would have windows of such style.