Millennium Square was teeming with tots, teens and families who donned fake blood and guts for the event, which needed to attract 1,200 zombies to smash the Guinness World Record.

After just one hour, organisers estimated that 500 had filtered into the square, where a dance routine to Michael Jackson's hit Thriller was staged.

Spooky make-up was also on hand for passers-by who wanted to take part.

But only another 200 arrived, resulting in a total of 700 zombies - some 500 short of the world record.

The event was staged to launch the Leeds Young People's Film Festival. The theme was inspired by Zombies in Love – a film made at Kirkstall Abbey featuring hundreds of Leeds youngsters.

Andrew Marshall, 37, of Yeadon, brought his nine-year-old son Nathan. "We have never done anything like this before. I used to be a Goth in the old days so I've had plenty of practice. I think it's fantastic for Leeds. I've never seen anything like it, it's new and I am glad they have held it here."

David Fox, 17, had gone along with Emma O'Connor, 18, both of Gipton. Emma said: "It's amazing. Everyone's really done their bit and the little kids look so cute! I wish they would do more stuff like this."

Gemma McWilliams, of Roundhay, took to the square with her sister and children. "I have never known anything like it before. We have nine kids between us and they absolutely love it!"

Organiser Adam Graham said: "It's just great to see so many people make so much effort and have fun."

The Leeds Young People's Film Festival runs until April 4. For tickets log on to www.leedsyoungfilm.com or ring 0113 224 3801.

For a line-up of events visit www.leedsyoungfilm.com.