Cant stop at only three
3) Any Hammer Film (or clone) - especially Lust for a Vampire
2) The Thing along with the first colour offering of Quatermass and the Pit.
1) Really anything with Christopher Lee - but The Wicker Man just tops the list
My ideal Xmas present would be one of the terrestrial broadcasters doing a month of double bills, each night with the plethora of films they must have in storage, Vincent Price (Dr Phibes)/Peter Cushing/ Mr Lee/Oliver Reed/Madeline Smith etc, and all the b list actors/actresses that deserve more recognition for their services in the past half century.