Goofs

When Ian is video chatting with Karen on skype along with Salomina we can see the time on Karen's laptop as 5:04 PM. 5 PM in the US should be 4 AM in New Delhi but we can see in the background that its daytime in India.

Ian's glasses change between shots when he is in India. In some shots they are frameless, and in others, they have black frames.

Priya Varma tells Ian that there are one million people in the surrounding thirty blocks. A short time later Ian tells Karen that there are one million people living in the surrounding ten blocks.

The images of Salomina's eyes when displayed on Ian's computer are the same as the images he took of Sofi. It's obvious by the skin pigmentation on the second set of images.

As a scientist, Ian should have known that he invalidated Salomina's test by both being the tester and knowing the "correct" answers: his eye movement, body language, etc. could have provided clues to Salomina which images to choose. To be valid, the test should have been done "double-blind" with the tester not knowing the correct answers; ideally this would have been by Priya who had both Salomina's trust and no prior knowledge of Sofi.

It is not correct to weight all of the Salomina's test answers equally. For example, her getting the answer for the favorite candy right should not have the same importance as her correctly recognizing her grandma's face. The test was not correctly designed.

Karen says the results from Salomina's test lie "within standard margin". However, one can not calculate the unbiased sample variance of one-sample sets and, hence, you can not know whether a result from a single test lies within any kind of confidence intervals or margins. In fact, the empirical variance of one-sample-sets is a sort of running gag among statisticians. Researchers with even the slightest background in statistics, let alone the internationally-known empirical scientists, would never say such a thing nor would they abandon such a promising project based on only one interview.

As a biologist, Ian would know that the natural world has many types of eyes, so there's no one evolutionary path from a single ancestor. He also regards human eyes as exhibiting the best vision, when for example predatory birds have far superior eyesight, and some animals can also sense light in the ultraviolet or infrared.

When Ian is walking down the Delhi market with the Indian lady, they pass a dish antenna that has the words 'd2h videocon' appearing in their mirrored form. This reveals that the original shot was flopped during editing.

When the nurse scans the eyes of Ian and Karen's son, Tobias, and then processes the data in the computer, the computer's pointer is seen misplaced revealing the use of a presentation (slides) as the "software".

The bus has no vehicle ID number on the outside, only on the back and on the inside on the front (near the driver), where the last of the '7018' digits is obscured, as if taped-over. Normally the vehicle ID number would be on all four of the outsides.

Ian and Kenny are shocked that duplicate iris patterns can be found in the database. However, a newscast about the Indian identification system explains that each iris pattern is stored as a 12-digit number - this is only 138 times greater than the world population (as of 2014), so many matches would be expected by pure chance.

Kenny helps Ian and Karen look for close relatives in an identification database, but they suggest only two grandparents each when they would both have four.