That doesn't look like Palpatine on the poster
I think it's Dominic Monaghan as a Palps clone or wannabe.
https://m.media-amazon.com/images/M/MV5BZWU1NDI3YjEtZTlmMy00Y2FmLWI1ZDYtMjYwNDUxYTdlODllXkEyXkFqcGdeQXVyODkzNTgxMDg@._V1_SY1000_CR0,0,675,1000_AL_.jpg