'Breaking Dawn': Michael Sheen Spills the Story Behind Aro's Maniacal Laughter (Video)

Between the dramatic moments in Twilight: Breaking Dawn -- Part 2 (of which there are plenty) lie brief moments of comedy relief, including a rousing fight between Bella (Kristen Stewart) and Jacob (Taylor Lautner), a blond vampire with plenty of "shock" value and, arguably the most humorous, Aro's (Michael Sheen) laughable shrieks of delight.

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Speaking with The Hollywood Reporter, Sheen happily revisits his inspiration for developing the maniacal laughter behind his calm and collected Volturi leader.

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"I like the idea that Aro is someone that has sort of gone crazy through being immortal," Sheen explains. "He's just bored to death. He's seen everything, done everything, and that kind of boredom, the same old things, has kind of driven him a little bit mad."

As for the disarming giggle, Sheen says, "So under the depths, underneath this controlled voice and this character who is very much in control, is this out-of-control, crazy laughter.

"When Renesmee (Mackenzie Foy) comes along, he's never seen anything like her before," he adds. "For someone who's been around for so long, to see something completely new, he just loses control."

Breaking Dawn -- Part 2, the fifth and final film in Summit's Twilight Saga, opens Nov. 16.

Email: Sophie.Schillaci@thr.com; Twitter: @SophieSchillaci