Taken from the 2000AD Online website:
"2000 AD, Britain's award-winning weekly sci-fi, fantasy and horror anthology comic, will be publishing an exclusive, five-page Shaun of the Dead story ahead of the self-styled 'romzomcom' going on general release. Scripted by Simon Pegg and Edgar Wright, the movie's screenwriters (as well as star and director respectively), and illustrated by acclaimed two-time National Comics Award winner Frazer Irving (Necronauts/The Authority: Scorched Earth), the strip will appear in Prog 1384, on sale 7 April 2004, two days before the film hits cinemas nationwide on 9 April. The issue will also feature an original Shaun of the Dead cover, again by Irving.
Titled 'There's Something About Mary', the story follows a young supermarket check-out girl and how she comes to join the legions of the undead in the film. Rather than being an adaptation of a section of the plot, instead it weaves itself into the existing narrative, adding a further dimension to the characters.
Shaun of the Dead is an everyday tale of life, love and the living dead, focussing on a group of friends who encounter a literal weekend from hell as their lives, loves and personal squabbles are upstaged by a full scale invasion of the living dead. It stars Simon Pegg (24 Hour Party People, Spaced), Nick Frost (Spaced), Kate Ashfield (Late Night Shopping, The Low Down), Dylan Moran (Black Books) and Lucy Davis (The Office).
2000 AD, Britain's premier sci-fi comic, has been in continuous publication since 1977, and is home to such iconic characters as Judge Dredd, Strontium Dog and Rogue Trooper. It has also been responsible for showcasing some of the UK's most talented writers and artists, including Alan Moore, Kevin O'Neill, Grant Morrison, Simon Bisley and Garth Ennis.
2000 AD Prog 1384 is on sale 7 April 2004, priced £1.60."
With thanks to Philt for the heads up