In one scene the vials of super-soldier serum are injected into Peggy Carter then in the next scene as the pod closes the vials are all full and glowing again.
Captain Carter wears the 2 bars designating a captain of the US Army. Being British, she should be wearing the British designation of three (3) Bath stars.
The blond muscular German Peggy fights at the Brandenburg Gate mispronounces the word "Fräulein." In German, the "äu" makes a sound like "boy." He says "au" like cow, as is commonly mispronounced by Americans.
Two nurses inject Peggy but the syringes are empty .
The German character(s) mispronounce the German word "Reich", saying "rike" instead of "reye-ssh".
Two nurses inject Peggy at the same time: only one nurse should be in charge of doing both injections or they should be communicating to avoid any misunderstanding on who is injecting what.
When two nurses inject Peggy: one injects intramuscularly way too high in the shoulder, this is a mistake as it should be done in the deltoid (lower, on the upper part of the arm, to avoid injecting in the shoulder joint and triggering the infamous SIRVA "shoulder injury related to vaccine administration").