Corrected entry: When Barnabas comes out of the coffin and kills the workmen, the McDonald's sign behind him says 9 billion served. This is set back in 1972, and even by the mid 80s the McDonald's signs only said 4 million served.
Dark Shadows (2012)
1 corrected entry
Directed by: Tim Burton
Starring: Johnny Depp, Michelle Pfeiffer, Helena Bonham Carter, Eva Green
Continuity mistake: When Angelique traps Barnabas in the coffin for the second time, there is a separate lid to the coffin. But by the time Barnabas is in the cemetery, hinges have suddenly appeared on it. (01:24:05 - 01:25:45)
Barnabas Collins: What is your age?
Carolyn Stoddard: Fifteen.
Barnabas Collins: Fifteen, and no husband? You must put those child-bearing hips to good use, lest your womb shrivel up and die.
Question: After their mansion burns down, what happens next to the Collins family?
Answer: It's unknown. The original intention was to make Dark Shadows into a film franchise and that question probably would have been answered in the sequel. However, there have been no additional films made.
Correction: The official company history states they'd served 5 billion by 1969, 15 billion by 1974, and 30 billion by 1979. So 9 billion in 1972 seems about right.