The band checks into standard budget motel in which all room entrances are from exterior walkways facing pool. However, the girls are later seen walking down enclosed hallway to get to their rooms.
When copies of a Japanese magazine are distributed to the band members, the cover is on the wrong side, as in a western magazine. Japanese magazine covers are on the opposite side, as publications are all right to left.
When Cherie calls her sister Marie from a telephone both, she inserts coins before she has even lifted receiver, then dials; call would never go through unless she had lifted receiver first.
Cherie somehow makes long-distance call from courtesy phone on wall near a motel pool; in reality, budget motels of that era never had free public phones that would allow customers or anyone who wandered onto property to place phone calls, even if they were collect.
When Cherie Currie is attempting to buy a bottle of vodka at the supermarket, alcohol can be seen on display that was not in production yet e.g. green and orange boxes of Patron.
When we see Cherie Currie drop the phonograph needle on a vinyl record of David Bowie's 1973 album "Aladdin Sane", the RCA label is black with the company name printed in block letters. Nipper, the dog listening to "His Master's Voice", is pictured on the side. This version of the record label was not introduced until 1977, a year after The Runaways released their first album. The correct RCA label would have been either orange or gold with the company name printed in the block letters they introduced in 1968 and without Nipper who disappeared from the label at that time, not to return until 1977.
The Dodge Charger shown at the beginning of the movie has a license plate beginning with the number 3 (which was not issued until several years later).
One of the crew's hands can be seen holding a black card in the reflection of the trailer's window when Cherie is standing outside waiting while Kim Fowley and Joan Jett are coming up with the "Cherry Bomb" lyrics.
In Japan, they show an American limousine driving on the right side of the road. In Japan, they drive on the left side of the road.
An early scene takes place outside Rodney Bingenheimer's English Disco on Sunset Strip - one of West Hollywood's busiest multi-lane thoroughfares. However, in the movie, it is depicted as a two lane street with virtually no traffic.
When Rodney Bingenheimer interviews Joan Jett on his KROQ radio show in the early 1980s, he claims that he used to play a lot of Runaways music at his old Sunset Strip club, the English Disco. This club closed half a year before the band even got together, let alone had landed a recording contract. However, it is possible that the character was mistaken or telling a tall tale.