robin williams is creepy, but his creepiness seems harmless. although he stalks this family, and the focus of his stalking is on the wife, the film never portrays it as sexual. sure, he has a tabletop full of framed stolen photos of her, but we never see him doing anything sexual. he comes home to his single lonely apartment, watches television, looks over his photos. he is unusually obsessed with this family, particularly the wife, but it's just straight-forward creepiness, there's no law that says you can't be creepy. maybe if they threw in some sort of fantasy sequence would you be more understanding of his motivations, but the movie as it stands sort of leave that dangling.
the snapshots in the movie are funny. they try to fake candidness, the kind of photos normal people would take, but obviously they're taken by a professional, because the lightings too good, or the framing, even though they try to emulate the awkward positioning of your average amateur photographer, still seems too polished to be true candids.
spoiler: and that ending? did he or did he not take photos of the husband with his mistress? then how come in the end, when the fbi developes his role of photos, it's just snapshots of mundane things, inanimate objects? i think he was just trying to scare the husband. if he was really a dangerous psycho, he probably would've killed him and maybe his mistress instead of letting them live.
good movie, suspenseful, thoughtful in its study of the nature of photography, and if you do see it, please explain the ending to me.