When the schools reopen after the first lockdown, Geri's students ask if he'll be there 'on Monday'. However, because the date on which schools officially reopened (June 1, 2020) was on a holiday (Pentecost), schools reopened on a Tuesday rather than a Monday.
An early scene shows Geri, already in lockdown, watching a government press conference. However, this is the press conference in which the lockdown was announced (March 15, 2020).
In one humorous moment, Geri thinks the people applauding health care workers were applauding him. There are two errors here: first, the applause occurs during broad daylight, when in fact the sun had already set when the applause occurred (20:00). Also, in the story the applause scene takes place long after the news of Health Care minister Bruno Bruins collapsing due to exhaustion. However, the national applause was on March 17, 2020, and Bruins resigned on March 19.