I have several pointers on how to practice/interpret the appassionata in my book (see below), but it is scattered over several places; go to the index and look under Beethoven, Appassionata.
I have just finished a session, practising the last movement. My left arm bicep muscle is hurting badly -I think it might have something to do with the bit where the arms cross -I may be tensing up too much -my right arm and hand is ok. This is very depressing. When I played this when I was much younger, I had no pain at all -then I didn't have the technique -now I have the technique in some respects -I don't have the relaxation -I don't know.I feel right now, like giving up playing altogether. I guess I won't though -I will learn some easier pieces.
That's a very common effect of practicing hard pieces from naught to sixty. An athlete can't run a marathon without first working up to that level. I recommend to practice much shorter amounts of time, preferably practice slowly and relaxed until your playing apparatus has got more adapted to the specific movements of that particular piece.
Much depends on your point of view on the learning and your attitude. I look at the Appassionata not only as a prize to reach at the end, but also as a way and means to learn piano playing.
Starstruck; why don't you start the second movement? And m1469? Where are you?And Jp?
I found this clip on Youtube by chance, it has to be one of the best interpretation of Beethoven Op57.
I loved the Ciccolini interpretation of the Appassionata -he plays it like I would ideally like to play it!