Proper cinematic villains should of course get soliloquies. Indulge your florid writing skills and purple prose composing to the maximum.

Just remember to come up with a good excuse for inflicting them on your players.

Transcript

GM: Meanwhile, at the Peace Moon:
Palpatine: Life's but a walking shadow; a poor player, that struts and frets his hour upon the stage, and then is heard no more.
Palpatine: It is a tale told by an idiot; full of sound and fury, signifying nothing.
R2-D2: So meta.