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
Plot hole: When Elizabeth is interviewing Victoria for the first time, she mentions that Victoria had sent her an application, therefore her name had to have been on it. However, Maggie Evans didn't change her name to Victoria Winters until she was on the train en route to Collinwood for the interview, therefore Elizabeth would have been expecting Maggie Evans, not Victoria Winters.
Angelique Bouchard: I'm going to make an offer to you, Barnabas. My last. You can join me by my side and we can run Collinsport together as partners, and lovers... Or I'll put you back in the box.
Barnabas Collins: I have already prepared my counter-proposal. It reads thusly: You may strategically place your wonderful lips upon my posterior and kiss it repeatedly!
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.