Sir Ian McKellen surprises Sam Heughan with this adviceTo play this video you need to enable JavaScript in your browser.This video can not be playedSir Ian McKellen surprises Sam Heughan with this adviceCloseWatch the full episode on BBC iPlayer.SubsectionCulturePublished2 SeptemberShareclose panelShare pageCopy linkAbout sharingRelated topicsActingFollow Actingclose panelYou are now following ActingUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description