Fatto generale: 23 is the number of minutes that all flashbacks take place before the assassination attempt on the president in the film Vantage Point.
Fatto matematico: 23 is the ninth prime number, the smallest odd prime that is not a twin prime.
Trivia: 23 is the number of crosses on Calvary in the Monty Python film Life Of Brian.
Data storica: January 23rd is the day in 1570 that James Stewart, 1st Earl of Moray, regent for the infant King James VI of Scotland, is assassinated by firearm, the first recorded instance of such.