All of those that have been listed are pretty good/decent movies. Only one I see that I didn't like much was Waterworld.
Some other ones that I know my Walmart has had in the past are
Rambo II - $5
Rambo III - $5
The Unnameable 2: The Statement of Randolph Carter - $5
Frogs - $5
Killer Klowns - $5
Rush Hour 1 - $5
Rush Hour 2 - $5
Lethal Weapon 2 - $5
Lethal Weapon 3 - $5
Lethal Weapon 4 - $5
The Negotiator - $5
Three Amigos - $5
Medabots 1 (seen at Kmart, not sure about Walmart but I'm sure they have it.) - $5
Frequency - $5
Money Talks - $5
Exit Wounds - $5
Demolition Man - $5
Murder at 1600 - $5
Assassins - $5
Ricochet - $5
Romeo Must Die - $5
Eraser -$5
Godzilla 2000 (or whatever the name is of the American Godzilla in 98 or 2000) - $5
Jackie Chan's First Strike (BB) - $5.99
Basic Instinct - (BB) - $5.99
Enemy at the Gates - Got this one at Walmart, but I don't remember if it was $5 or $5.50
Eye of the Beholder - $5.50 Walmart
Mystery Men - $5.50 Walmart
Airplane II - $5.50 Walmart
I've heard that they also carry The Unnameable 1
I know a lot of these since I usually buy some of these to tide me over for EB B2G1 free sales and the DDD sale.
Edit: Came back and decided to put in prices. Mostly rounded up as all of these are actually $4.88 at Walmart or for similiar prices elsewhere. I've seen the Rambos recently and they were marked up at Walmart for $5.50, as well as a couple others, but when I bought them they were only $5.
Edit2: And for some .99 cent/$1.00/Walmart $1.00 bin love, these are the movies that I would recommend:
Boot Hill
The Call Me Trinity
Trinity Is Still My Name
Farewell To Arms (1930's version)
Night of the Living Dead (seen this only once in the $1 section)
a few other movies that aren't coming to me at the moment that I'll add later.