Continuing the Top 5 theme, here are the Top 5 worst special effects. A lot of these movies were shot on a shoestring budget, and it quite often shows. My favorite bad special effect is at the end of "The Beginning of the End" (starring Peter Graves). Chicago is attacked by giant mantises (mantesii?) and it's clearly regular size insects crawling over a post card of the city. You can see that starting around the 5 minute mark of this clip.