Frogs is always popular, its "nifty" art (me trying to sound american).
This quad is not so god, but posters that use the full colour design sell like flap jacks (sounding american again).
Its a pretty boring movie, but ahh well, its got Ray Milland and frogs, its gotta be at least ok huh?
In Australia it was released on video as a double bill with premature burial. I must have rented it a zillion times.