Continuity mistake: There is a shot where Sawyer tosses Jack a medicine bottle or something. First shot we see Jack reach out to catch it with his left hand. Next shot from the front Jack catches it with his right.
Revealing mistake: When Jack asks Locke for the vault combination he yells "Jack" (his own name) instead of "John". (00:01:55)
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 ★