Ian joins a growing list of stars - including Prue Leith and Michael Whitehall - who have been called upon by the NHS to receive the vaccine at their local GP practice or vaccination centre.
The 'Lord of the Rings' star has been staying indoors for most of 2020 as his age puts him at greater risk of coronavirus complications, and recently said he had been enjoying a "lazy" lockdown.
He said: "I think I'm a rather lazy person so I find it quite easy to sleep in, read the paper, cook a meal, have a snooze, go for a walk, read a book, make a phone call, think about going to bed."
Ian also said he had refused some film roles as he didn't want to "die" whilst making a movie.
He added: "I've been offered a few films but I wouldn't feel safe to be making them to be honest. At 81, one is in the vulnerable age group and you just have to say, 'Am I prepared to die to make this film?'"