Other mistake: Peik Lin is driving Rachel to the Young family residence. As they are driving, the navigation system starts prompting her to make a u-turn because there's nothing out there but jungle. Peik Lin brings the car to a stop, seemly indicating that they are lost and unsure where to go. The guards suddenly appear and then eventually give her the go ahead to go through a very visible gate. The gate is prominent. If the gate were that visible she and Rachel wouldn't have wondered if they were lost or in the wrong place.
Other mistake: When women's club is reading from the Bible, Eleanor asks to continue on to Corinthians after reading Ephesians. Actually after Ephesians is Philippians. Corinthians is a few books earlier than Ephesians.
Other mistake: When Nick is proposing on the airplane near the end of the movie, look at the seating row number next to Nick and Rachel. Shots of Nick are at around row 40. While the couple are both stationary but opposite each other, the camera is focused on Rachel, but her seat row is in the 20s.