Taylor Lautner returns as werewolf Jacob Black in the first part of the series' finale – which sees the marriage and of love torn character Bella Swan and vampire Edward Cullen – and promises it has the most "epic" emotionally charged scenes so far.
He said: "[Author] Stephenie Meyer has created incredible characters and a great story. This movie is very epic, and it's much more emotional than any of the other ones, but it's also very epic."
The 19-year-old star added being a part of the series – which was initially made on a small budget, with then unknown actors, who have since become household names as its popularity has soared – is still sinking in for him.
He told TV show 'BBC Breakfast': "I filmed the first one when I was 15 years old and so it was very surreal for me and the craziest part about all of this is none of us expected this. It came as a surprise to all of us, it's amazing to be sitting here today and I still have to pinch myself."
Taylor also has his first leading role in thriller 'Abduction', which also gave him his first taste of working behind the scenes as a producer, helped him get behind his character in the film.
He added: "It's always been a dream of mine to be involved in movie making not just in front of the cameras but behind the cameras as well. And I was very blessed that I was able to be involved in that way in 'Abduction'.
"When I show up to set I feel like I know my character inside and out, instead of just starting to try and get in to the character's shoes then, it's very helpful as an actor and like I said, I'm very fortunate to do that."