Isbaelle Cornish takes a tumble off a horse Isabelle Cornish before her fall / Pic: Instagram Source: The Sunday Telegraph PUBERTY Blues star Isabelle Cornish may have to wait a tad longer if she ever considers doing a period drama requiring her to be on horseback. Abbie Cornish's little sister took a tumble from a horse shortly after this picture was taken while filming an ad for jewellery designer Amber Sceats in the Hunter Valley last week. She was not badly hurt but the shoot was postponed to this week in Centennial Park. Neither Cornish's agent nor Sceats would comment on the incident but we think it looks like a beautiful campaign. "She's going to be fine," said a source. It gave her a shock but she is OK.