Revealing mistake: In one of the first scenes, one of the characters is standing with an umbrella close to a landing helicopter - without the umbrella being the least affected by the wind.
Pacific Rim (2013)
1 revealing mistake - chronological order
Directed by: Guillermo del Toro
Starring: Ron Perlman, Idris Elba, Charlie Hunnam, Charlie Day, Rinko Kikuchi
Factual error: During the Hong Kong battle, one of the Kaiju disables the Australian Jaeger and the base by emitting an EMP blast. Becket claimed that the Gipsy Danger was immune because it had a nuclear core and was therefore "analog". Being nuclear powered has no bearing on whether a machine is analog or not, and the EMP would certainly affect all the electronic circuitry needed to control the Gipsy.
Dr. Newton Geiszler: Fortune favors the brave, dude.
More trivia for Pacific Rim
Question: Why are the people so proud of having built Jaegers with obviously obsolete technology?
Answer: Simple: because in a mere 14 months (as was said by Pentecost) they managed to build an effective weapon against the Kaiju.
Friso94