Factual error: Driveway cut outs with tapered edges were not extant during the time period of this film.
Factual error: When Andy is headed to Mr. Simon's house, a white 90s Lincoln Town Car can been seen in the background, out of place for the 1965 setting. (01:31:45)
Factual error: The guys are trying to find a seedy bar and are using the GPS with Gregory talking to them. The map shows them moving in one direction but the streets are diagonal from where they are going.
Factual error: Lady Arabella mentions her ex having put their "private" tape on Youtube. Impossible as Youtube strictly forbids that sort of thing from being uploaded on their site.
Factual error: Jerry digs up a natural gas pipeline in the backyard and jerks it so hard that a pipe coupling in Charlie's house breaks, venting natural gas into the house for about 4 seconds. Then Jerry uses a cigarette lighter to send a flame through the pipeline, exploding Charlie's house like a fire bomb, catching virtually every room in the house on fire. In reality, it would take an hour or more for vented natural gas to accumulate sufficiently to blow up a house, for one thing. For another thing, Jerry broke the gas pipeline in the backyard in order to ignite it; so, while the broken pipeline leading to Charlie's house had no gas pressure, the pressurized side of the pipeline was still in the backyard with Jerry. Meaning, Jerry himself should have been engulfed in fire as soon as he sparked a flame.
Factual error: When Jamie answers Dylan's phone and his ex-girlfriend shouts and then hangs up, you can hear a hang up tone. This isn't possible on a cell phone.
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)