Factual error: On the plane, Emma shows an issue of Hello! magazine featuring the heiress Grace is passing as. It's labeled as "number 1100, May 31 2010", but the May 31 2010 issue was actually number 1125. (00:30:30)
Factual error: Judging by what is shown at the end of the movie, Owen managed to install the new light switch while the lights were turned on. (01:40:50)
