Robert Pattinson required medical help after an advertising sign knocked him over during shooting of New Moon in Vancouver, reports.

A source told National Enquirer magazine: “Robert had just started shooting a scene when a gust of violent wind tore a heavy metal sign from a post. It shot across location so fast no one even managed to shout a warning at Robert. It hit him on the head and he dropped to the ground lying deadly still. Cast and crew ran to help.

“Robert finally came around. The crew put ice on the knot-sized lump on his head and by the time medics arrived he was coherent. But director Chris Weitz still cancelled filming and ordered Robert to return to his hotel. He came back to set the next day, but was still sporting a lump.”