November 8 2012, Scott Tobias, Memento’s puzzle structure hides big twists and bigger profundities Memento unfolds over 22 scenes—or, more accurately, 22 strands of time, the main strand (in color) moving backward in increments, and another strand (in black and white) going forward, though the two overlap profoundly.
(mathematics) Used of sets that have some elements in common.The set (all men) overlaps the set (vegetarians)
(rugby) a situation in the game where an attacking line has more players in it than the defensive line coming to meet it. The attacking side may exploit the overlap by using their superior numbers to break the opposition's defensive line. If attackers outnumber defenders by more than one player this is often termed a two man overlap or three man overlap, etc. If the attacking side fails to break through usually due to poor execution, they are said to waste an overlap.