Im not really sure who i would pick for Lady Macbeth. But for sure Heath Ledger. I think he does a wonderful job playing as a night and a cowboy! He took his roles seriously and made it to where he really became that charecter! A Knights Tale is one of my favorite movies just because i love watching him act! I guess on Lady Macbeth i would put Audrey Hepburn just because i think she is a wonderful actress! lol