I bet I have watched nine or ten in a single day before, but it probably shouldn't exactly count because I probably would have watched one or two of them twice, instead of nine or ten distinct movies I had never seen before. Like, maybe if I was home sick, or mindlessly cleaning my apartment, I might just have the TV on constantly, playing a constant stream of demented beheadings, chainsaw attacks, zombie aliens, yadda yadda yadda. If my intent was to stay just distracted enough to enjoy myself, and yet be able to slightly focus on tasks like cleaning up in my apartment, then I might choose to watch and rewatch some movies repeatedly, just so I wouldn't have to pay close attention.