In the last scene after Augusten has said goodbye to his mother, the suitcase he had is no longer with him while he waits for his departing bus.
After Augusten's mother hands him the adoption papers, he crumples them with his hands and drops them. In the next shot, the papers are sitting uncrumpled on the kitchen table.
The amount of damage to the ceiling changes between shots when Natalie and Augusten are making a skylight.
In the last scene after Augusten has said goodbye to his mother, the suitcase he had is no longer with him while he waits for his departing bus.
There are two identical scenes of the family station wagon driving by. In both scenes, the station wagon passes the same section of street (including a blue 1965 Chevy Impala parked along the curb).
Deirdre Burroughs medicine cabinet of pill bottles contains some with a combo child resistant/ easy opening top, which wasn't developed until the 1990s.
The labels on Deirdre's pill vials in the 1978 segment are in a proportional font, and appear to be laser-printed. In 1978, prescription labels would have been prepared on a typewriter with a monospace font.
In 1978 the Gothic soap opera "Dark Shadows" was being shown on the TV in Dr. Finch's house. The show was cancelled in 1971 and wasn't shown in reruns on cable until the 80s.
As Augusten and Bookman walk down the street to his car following their date at the movies in the 1970s, the reflection of a huge modern lighted Borders Books sign can be seen reflected in a store window.
In one scene in which Augusten and Natalie Finch are sitting in the kitchen talking, there is an extended closeup of Natalie smoking a cigarette. The brand is unmistakably American Spirit, a brand that was not out then.
In a scene between Dr. Finch and Bookman: Dr. Finch yells that he sent Bookman to photography school at the University of Rochester (U of R). The U of R is a medical and research school, with no photography majors. However the Rochester Institute of Technology is a world-known college for photography majors.