Continuity mistake: In the film, the hair on Marvin Candle changes from the original film to the one that Mr. Eko found. It is much shorter on the recovered clip.
Continuity mistake: When Jack and Ana-Lucia are talking on the rocks by the beach at the end of the episode, Ana-Lucia's hair is pulled back and is completely off her face. However, in two of her close-ups, there are two small forelocks loose in the wind near her temples, which are not present in any other shots during this scene.
Continuity mistake: When Jack and Kate are discussing who should stay with Sawyer and who should go to Shannon's funeral, as the camera goes back and forth between the two the towel on Sawyer's forehead is there, then not, then back again through the whole scene.
Answer: Using a mold, a realistic pregnancy belly is made of latex (rubber), including the distinct belly button, to suit the proportions of Emilie de Ravin who plays Claire. It is then painted with a special paint/adhesive compound that adheres to the surface and for shots of the actual belly, additional veining and stretch marks are airbrushed on.
Super Grover ★