The issue of the Weekly World News used in the movie is a real one, from July 7th 1992. For a number of years in the late 90s and early 2000s, I would regularly subscribe to the magazine, buy McEwans and read 'the paper'.
I have been able to find much of the original issue of the WWN from that particular date and I have reproduced it below. Sadly, the Weekly World News is no longer being printed but it is still published online, but you can buy original uncirculated copies from their website.
http://weeklyworldnews.com/
If you have any updates, errors, or suggestions for this page, please email me below.