Robert Pattinson is to introduce an exclusive clip of 'The Twilight Saga: Eclipse' at the MTV Movie Awards.

The British actor will be joined by Kristen Stewart and Taylor Lautner on the stage to introduce the clip at the event on June 6 - the third time the MTV Movie Awards has aired a never-before-seen snippet of the film franchise prior to its release.

The 'Twilight Saga: New Moon' is up for multiple prizes at this year's event, including Best Movie, Best Female Performance, Best Male Performance and Best Kiss.

However, it is not the most nominated film, with 'The Hangover' dominating proceedings with nods in six categories.

This year's awards will be hosted by comedian Aziz Ansari live from the Gibson Amphitheatre in Universal City.

Christina Aguilera and Katy Perry will be performing at the event, while Russell Brand, Tom Cruise, Zac Efron, Jessica Biel, Bradley Cooper and Vanessa Hudgens will be presenting awards on the night.