all right, the execution of mary, queen of scots is certainly not the prettiest of the edison labs. films. i'm not keen on executions nor bad camera tricks and this one delivers. still, it's the first of it's kind for both, and is therefore essential viewing for anyone seriously interested in film.
now, let's get realistic for a second here. the camera trick used here is one of the first, if not the first of it's kind. apparently it shocked the audience it had in it's days, but for obvious reasons it today looks quite fake. this is also one of the first if not the first film reproducing a historical scene going for the best possible realism, a description that later became a definition for a genre. the execution wasn't very realistic historically either, though.
according to IMDb it's also the first film with trained actors. it doesn't show much ;) but it's yet another merit for this film only mildly interesting in traditional sense. like it or not, the execution of mary stuart ranks high in film history. the influence it has given to countless films after it cannot be dismissed.