My av is from Hitchcock's STRANGERS ON A TRAIN. If you haven't seen it, you should most definitely do so. In fact, see as many (if not all) of Hitchcock's films. They will change the way you look at cinema.
I haven't joined that forum because, quite frankly, nothing much of interest to me gets discussed there. I probably will join as soon as I notice some glaring error that needs corrected or something. You have no idea how many legacy I've joined just to correct people about giallo films