Robert Pattinson jokes that he is in danger of being replaced by Hollywood rival Zac Efron for the Twilight sequels after the phenomenal success of the first movie.

The British actor joins co-star Kristen Stewart and director Catherine Hardwick on the audio commentary for the DVD, which was released in the US over the weekend and is available in the UK from April 6.

And, in between obsessing over Edward Cullen's impressively sculpted eyebrows and “bouffant” hair, Rob suggests that movie bosses can now afford a high profile star for the lead role, rather than “an unemployed actor from London.”

“Where's Efron?” he quips.

Thankfully, Rob's casting suggestion has been ignored and he has started filming on the second Twilight installment, New Moon.

See more of Rob & his Twilight bouffant below