Both films are set in the future and have a mystery to solve. Both films also have a lot of violence and gunplay centering on government "special forces" and "terrorists".

Where the films differ is that "Yesterday" has a different sci-fi angle. There is a bloody ending which is a bit predictable however unravelling the mystery and finding out what is really happening will keep you more than interested.

Of note is the female actress playing "Dr. Kim". She's lead actress in "Iron Palm" and is fluent in Korean and English. She's not the prettiest or a young Korean actress however she has a certain on-screen presence and the flexibility of being fluent in two languages. Surprising that she hasn't been featured in more films.

"Yesterday" is an enjoyable action film. A worthy addition to any DVD collection.

Yesterday starts out like a fairly standard action/investigation film. But, it quickly becomes apparent that it‰s nothing more than a series of clich*s, filled with lousy actors who never once change their expressions (if they have any to begin with). The film is shot in an interesting style, mixing hand held camera work (to give it that documentary feel) with extended crane shots, in the same scene. The camera work would have been fine had the separated the different styles in order to use one style per scene, instead of mixing it up with each different shot.

Another problem that made the film seem extremely cheap were in the scenes with extras, specifically the "riot" scene. It simply looked like they took everyone they had and stuck them in front of the camera, but sat the camera back too far so you could see how few people were actually there. The "large" riot that the characters were talking about were about a dozen less than enthusiastic extras moving towards a line of about 8 riot cops, none of which looked particularly into the whole riot mentality.

The story was pretty convoluted, but made enough sense to understand. But, that didn‰t make it good. It was fairly dull, and extremely predictable. It was a typical genetic mutation creating super soldiers that got out of hand story. To really make things "deep" they called some of these genetically modified soldiers (who were modified as kids) David and Goliath. If that doesn‰t tell you who was going to win in the end, I don‰t know what will.

Boring movie, bottom line.