At 94:58, Gopi mentions that 623 and 612 flights departed from London and Frankfurt that day (pretty close to the respective daily averages), but then he proceeds to equate that to 825,802 passengers, which would equate about 688 passengers per flight, a long stretch given that the average capacity of a Boeing 757, which, even assuming all of those flights were Boeing 757-300s, is more than double the maximum capacity of 289 of a Boeing 757-300.
Further, even assuming that particular day was a particularly abnormal day, and ignoring the film's own estimate of 623 takeoffs on the said day, the busiest day ever at Heathrow only saw a traffic of a total of 233,561 passengers (arriving + departing). Given that Frankfurt has the third largest passenger capacity in Europe behind Heathrow and Paris, the total number of passengers at both airports combined barely breaches the halfway mark of the 825,802 passengers quoted by Gopi in the movie.
Further really stretching this, and even considering all airports in London (and not just Heathrow, ignoring the total 623 number of departures which is met by Heathrow alone), the average number of departing and arriving passengers in all London airports combined is still 366,102 leaving us with an average of 183,054 departing passengers from all London airports, which even assuming an equal number from Frankfurt, is again barely half the quoted number of 825,802 passengers.
