The Dark Knight
More product info
From Emma Thomas
Refresh the report to view the most up-to-date data available:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Single-Day Reviewer (posted all reviews on Oct 31, 2014)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (2 of 124 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 5 of 9 top products
- Easy Grader (avg. rating: 4.9)
Analysis Details
Take-Back Reviewers
1,821 of the 3,928 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
Single-Day Reviewers
94 of the 3,928 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.7 while all other reviewers rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
10% also reviewed:
Batman Begins (4K Uhd) - Movie [Blu-ray] [2005] by Caine, Michael
5% also reviewed:
Iron Man (Ultimate 2 Disc Edition) by DOWNEY,ROBERT JR.
4% also reviewed:
Inception (Limited Edition Blu-ray Steelbook)... by Warner Manufacturing
4% also reviewed:
The Incredible Hulk [Blu-ray] by Edward Norton
4% also reviewed:
X-Men Origins: Wolverine by
4% also reviewed:
Avatar by Sam Worthington
4% also reviewed:
Star Trek Exclusive Steelbook (Blue-ray) by Chris Pine
4% also reviewed:
Indiana Jones and the Kingdom of the Crystal Skull by David Koepp
3% also reviewed:
Man of Steel (Two-Disc Special Edition DVD) by Henry Cavill
895 of the 3,928 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
We discovered a total of 111 deleted Reviews for this product, with an average rating of 4.4. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
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- 19%
- Created over 67 days
We counted 3,928 reviews for this product over the span of 4,733 days, an average of 0.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 67 days exceeding this threshold:In total, we found that 742 reviews were created on just 67 days. This is an excessively high number of reviews submitted on these high volume days.
Brand Repeaters
1,098 of the 3,928 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
1,270 of the 3,928 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
(4.3/5)
(4.4/5)
(4.4/5)
(4.4/5)
(4.5/5)
(4.4/5)
(4.4/5)
(4.4/5)
(4.2/5)
(4.5/5)
(4.7/5)
189 of the 3,928 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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- 19%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 746 reviewers (or 19%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.