Top Ten Best-Selling Ebooks -- Week of September 20

The impact of media tie-ins on best-selling ebooks makes its presence felt even more strongly this week.

Just ahead of the release of a David Fincher-directed adaptation of Gone Girl, Gillian Flynn's novel slides into the No. 1 spot on the Digital Book World Ebook Best-Seller List.

In fact, twelve of the top 25 titles this week are connected to a popular movie or TV series. That's just shy of half the list.

The top ten best-selling ebooks for the week ending September 20:

1. Gone Girl: A Novel by Gillian Flynn (Penguin Random House) -- $7.99

2. Edge of Eternity (Century Trilogy Book 1) by Ken Follett (Penguin Random House) -- $11.99

3. Personal: A Jack Reacher Novel by Lee Child (Penguin Random House) -- $10.99

4. The Maze Runner by James Dashner (Penguin Random House) -- $5.99

5. Outlander: A Novel by Diana Gabaldon (Penguin Random House) -- $4.99

6. Big Little Lies by Liane Moriarty (Penguin Random House) -- $10.99

7. Captivated by You (Crossfire Book 4) by Sylvia Day (Penguin Random House) -- $7.99

8. If I Stay by Gayle Forman (Penguin Random House) -- $4.99

9. Mean Streak by Sandra Brown (Hachette) -- 12.99

10. An Invisible Thread by Laura Schroff; Alex Tresniowski (Simon & Schuster) -- $1.99