"Buried." Unless you're one of the few who saw this gem from 2010, it's probable that if you do remember this it's only from its ad campaign. Basically, the hook of this story is that Ryan Reynolds has woken up in a box with no memory of how he got there. Granted, if you're buried underneath the ground in a box, a little memory loss is the least of your worries. Still, maybe he'd have an easier time getting out if he could remember who put him there.
"Universal Soldier." Yeah, this is one of Jean-Claude Van Damme's most famous movies, but the whole "memory loss" component is easy to forget, what with all the explosions. Here's a refresher: Van Damme is a recruit of a top-secret "Universal Soldier" project, which takes dead soldiers, reanimates them, and uses them on particularly dangerous combat missions. Here's the problem: the reanimated soldiers retain vague bits of their past selves. This basically means that Van Damme is still a good guy, albeit a confused one, and Dolph Lundgren is still a crazy son of a bitch.
"Dark City." There are lots of ways to get amnesia. A bump on the head, a psychological trauma etc. But how about you and everyone around you being manipulated by an evil alien species? That's what's happening in "Dark City," a movie that plenty have forgotten (despite the efforts of the movie's most well-known fan, Roger Ebert). Those aliens are keeping people's memory a haze so they can do all kinds of insidious things. Think about that next time you blank on a state capital.
"Spellbound." A true psychological thriller, Alfred Hitchcock's "Spellbound" deals with memory loss, guilt complexes, dream interpretation and many other psychological concepts. Gregory Peck stars as a man who has to regain his memory in order to clear himself of the charge of murder. The way it deals with memory loss may not be 100 percent medically or psychologically accurate, but it's 100 percent entertaining, like most Hitchcock movies.
"36 Hours." You'd probably have to be a fairly serious cinephile to remember this one, but it's got one hell of a premise. James Garner plays a top military official during WWII who is captured by Nazis. But the Nazis don't just throw him into a POW camp. They put him in a meticulously reconstructed replica of an American army hospital. Then they fool him into thinking it's six years later, and the war is long over. They do this so they can trick him into revealing important details about the D-Day invasion. This might not be a movie that everybody remembers, but it's definitely worth seeing for it's ultra-cool premise alone.
"Charlie Chan at the Opera." A true forgotten classic, this entry in the popular "Charlie Chan" series of the '30s and '40s features horror icon Boris Karloff as an amnesiac murderer who returns to the scene of his first murder, an opera house. All of the "Charlie Chan" movies are worth seeing, but this one is especially interesting, with Keye Luke as "number one son" and the aforementioned Karloff.
It may not be easy to get over memory loss, but these movies should stick with you once you reintroduce them to the old memory banks. Enjoy, and maybe try doing a crossword puzzle every day or something. Or maybe eat some carrots? It's so hard to remember.