Solution to 3: What's the Difference?

Each of the questions below has a different answer depending on if you are talking about the original source material or the most famous film adaptation. 

Gone with the Wind - How many children did Scarlett O'Hara have? 1 vs 3
2001: A Space Odyssey - What year did HAL become operational? 1992 vs 1997
LA Confidential - What year was LA Confidential released? 1997 vs 1990
Oldboy - How many years did Old Boy spend in prison? 15 vs 10
The Shining - What is the evil room in the Overlook? 237 vs 217

As the title of this puzzle states, take the difference of the two values for each question. Then, indexing A=1, B=2, etc. results in the answer: BEGET

BEGET