We must be able to get audio of Christopher Lee saying something like 'no, you don't understand, he's..' (over his shoulder) then a quick cut to palp 'kill him!' and the head comes off.
Also, if we cut out anakin killing the tuskens (go off on his his expression and the twisty violins) then the mediocre scene with him and padme where he confesses isn't just a confessions.. it will be more powerful, because it's a revelation.