Screenshot from Serendipity (dir. Peter Chelsom, 2001)
Wiki says: Serendipity is used as a sociological method in Anselm L. Strauss' and Barney G. Glaser's Grounded Theory, building on ideas by sociologist Robert K. Merton, who in Social Theory and Social Structure (1949) referred to the "serendipity pattern" as the fairly common experience of observing an unanticipated, anomalous and strategic datum which becomes the occasion for developing a new theory or for extending an existing theory. Robert K. Merton also coauthored (with Elinor Barber) The Travels and Adventures of Serendipity which traces the origins and uses of the word "serendipity" since it was coined. The book is "a study in sociological semantics and the sociology of science", as the subtitle of the book declares. It further develops the idea of serendipity as scientific "method" (as juxtaposed with purposeful discovery by experiment or retrospective prophecy).