April 7, 2012
In order for the change from a caterpillar to a butterfly to take place within the pupa, the caterpillar begins releasing enzymes that literally digest nearly all of its own body. What’s left inside the chrysalis is mostly just a very nutrient rich soup from which the butterfly will begin to form.
The cocoon sequence, involving the transformation of Brett and Dallas into eggs, was filmed but was dropped from the final cut of the original release because director Ridley Scott felt that the sequence interrupted the pace of the film. He believed that the inclusion of this sequence interfered with Ripley’s attempt to exit the ship, which would have unnecessarily slowed down the picture. The cutting of the cocoon sequence was an attempt by the director to keep tension in the final minutes of the film, not an attempt to alter the intended life cycle. However, Ridley Scott said that the Theatrical Cut is his “Director’s cut” and any alternate versions are just special editions for fans. Therefore his intention was to leave this scene out. That scene is now available in the Director’s cut.