The broken-mirror routine is a precursor to the one in Duck Soup (1933) starring The Marx Brothers. A double was used, and the scene took hours and hours to rehearse.
Max's car, which he initially refuses to drive after seeing an article on automobile accidents, is a 1916 Marman Model 34 - one of the most technologically-advanced cars of its day. Deciding to walk, Max then gets run into and tangled up in a 1920 Studabaker Big Six with its fashionably distinctive headlights.
First of three feature films Max Linder would make in America; the other two were Be My Wife (1921) and The Three Must-Get-Theres (1922). After the last, he would return to his native France. In failing health, probably due to being gassed in WWI, he would make one more feature and a short, then commit suicide along with his wife in 1925.
The 78 rpm record Max puts on at Betty's house is "Kamawee" by the Hawaiian Company, Columbia side A1588.
Max bears more than a passing physical resemblance to both Chaplin and Keaton. Both comedians later stated they borrowed from Linder, as Max had begun his film career in France in 1905, predating Caplin and Keaton by several years.