Decourcelle's first effort, Le Grain de beauté (The Beauty Mark) premiered at the Théâtre du Gymnase Marie Bell on 27 March 1880.

[citation needed] Decourcelle and Léopold Lacour made a play from Paul Bourget's Mensonges, which was first performed on 18 April 1889.

[1] In October 1897 Decourcelle's French version of William Gillette's play Secret Service was performed by the Théâtre Renaissance in Paris.

[7] Three American serials starring Pearl White were recut and re-arranged into a series called Les Mystères de New-York for French cinemas, screened in Paris between December 1915 and May 1916.

[8] While episodes of the silent ciné-roman series were being played in the theaters each week, Decourcelle's versions of the stories were published by Le Matin and the provincial papers.