Factual error: Aphrodite's son and Psyche's husband is Eros, not Cupid. Venus's son is Cupid. (Eros is Greek and Cupid is Roman).
Factual error: When Dougal and Ted enter the cockpit, the pilot points out the gauges for 'engines 1, 2 and 3'. They are in a Boeing 737 (the internal layout is that of a 737, not a BAE 146), which only has two engines.