Continuity mistake: On the episode dating 22nd January 2010, when Peggy is telling Roxy off for firing Tracey, they are in the kitchen. Roxy then turns to walk downstairs, and her ponytail is high and bouncy. Then, two seconds later, when she is visible again, her ponytail is low and messy.
Visible crew/equipment: The episode where Lisa is running away with Mel. (The episode where Steve dies) There is a scene where Lisa and Mel are panicking at a bus stop, Mel hails a Taxi. When the Taxi stops, you can see the WHOLE crew in the Taxis reflection. Cameraman, soundman, equipment etc.
Factual error: When Barry dies in the Scottish Highlands, Janine has him cremated. However, she manages to get back to Walford in roughly 4 days, no police force would allow for a body to be cremated 4 days after death, especially with an unknown circumstance of death. Also it would look very suspicious that the widow was so keen to get her husband cremated, slowing the police force down even more.
Revealing mistake: Episode Aired 12th December. In the laundrette a shelf had fallen off the wall and Dot Cotton needed someone to fix it. You could see the wall was false, as every time Dot touched the shelf, the wall was wobbling. Later same episode Martin Fowler fixed the shelf he said something like "the wall will fall down before the shelf does" - very true.
Continuity mistake: In the episode where Ash has been kicked out by his Dad for having a relationship with Shirley he comes back to pick up his things. He asks if he's ok, his hair is wet and slicked backwards. He then walks into the next room a few seconds later and it's dry and to the side.