"Highlander" actor Christopher Lambert, 69, was rushed to hospital by ambulance after collapsing during a meet-and-greet at Steel City Con in Philadelphia. Organisers said he had to leave the convention due to a "personal issue", prompting a brief medical scare for fans of the French star before reassurances followed about his condition.

A representative told TMZ that Lambert was "perfectly OK" and resting at his hotel, attributing the collapse to a lack of sleep the previous night and having eaten little that day. The incident occurred on Saturday and has since been resolved without further complications reported.