When Sookie finds William's grave, the amount and placement of the dirt over the plaque changes between shots without her having made any movements that would alter its position.
While Sookie is eating Adele's pie, the amount of pie she picks up with her fork does not match the amount on her fork from other angles.
On two occasions Bill enters Sookie's home without being invited inside. The first is when she has found her grandmother on the floor and he appears in the kitchen behind her. The second is when he rushes in, startling Tara and Laffayette downstairs. He is then found upstairs attempting to wake Sookie in her bed. In an earlier episode Bill clearly states he can not enter a human home without an invitation. However, this is consistent with standard vampire lore in that, once given permission, a vampire may enter one's home at any time until that permission is revoked. At the time of the two examples above, permission to enter the home had not been revoked.
The Capital "M"s in the "BON TEMPS CEMETERY" sign are installed backwards with the wide stroke to the left. On "M"s and "A"s the wide stroke should be to the right.