"For the fights, we strapped car batteries to the actors’ legs and wired them up so they’d spark when a sword struck. After about three takes, the sword handles would get really hot and we’d have to stop."
Highlander director Russel Mulcahy.
I'm not sure how they'd walk around with car batteries strapped on, to be honest - they're pretty heavy!
‘Drinking is completely forbidden on a shoot. You just try that in the Highlands’
www.theguardian.com