Well, personaly I had quite few problem playing movies in landscape mode in Kino2, if it do happend to you, be sure to have the last kino 2 (0.4.3c-1 now) and mplayer-bvdd (1.1.5-1 for me now).
Be carefull NOT to have mplayer-w100, I think it's for portrait mode zaurii (other than sl-c serie), thats probably why it always to play on portrait mode.
I can't believe I did spend so much time fixing this... cacko wouldnt play any movie correctly "out of the box", but with mplayer-bvdd now it's ok... the thing is I did install all mplayer I did found, thats why it would work even if I had mplayer-bvdd: the w100 version did probably overight the bvdd...
Hope it can help someone...