It may have been a gory moment for fans to watch, but for the Twilight cast, the birth scene was full of laughter.
Ahead of the release of Breaking Dawn: Part One on DVD, bloopers from the film have been released showing the stars of the film finding it difficult to keep a straight face.
Barrel of laughs: Robert Pattinson struggles to keep a straight face as he films a gory scene in Twilight: Breaking Dawn: Part One
Messy work: The British actor couldn't contain his laughter as he pretended to bite Kristen Stewart's arm
However, as soon as the British actor pulls away from Kristen Stewart's limb, he is seen spurting fake blood from his mouth and laughing.
But this wasn't the only part of the scene that made the cast giggle.
In probably the most tense part of the film, where fans are unsure whether Bella will survive the ordeal, Taylor Lautner - who plays werewolf Jacob Black- found it very difficult to stay serious.
Always smiling: Taylor Lautner who plays Werewolf Jacob Black reveals that he found it hard to stay serious while filming the tense scene
'Sometimes it was hard to keep a straight face,' he said. 'There was one point where she stops breathing and she's out of it and I have to give her CPR.
'There was some moments during that where we just couldn't keep straight faces because she's just like dead.
'Her lips are closed and suddenly I've gotta wrap my whole mouth around her lips and give her CPR.
Trying his best: Jacob has to perform CPR on Bella following the birth of her child
'It ended up working but it was funny at moments.'
Almost dead: Fans of the film were on the edge of their seat as Bella fought for her life
Fans of the Twilight saga will be able to get their hands on the DVD when it is released on March 12 and will no doubt be looking forward to the special features.
Twilight: Breaking Dawn: Part 2 is released in cinemas in November this year.