Let's see:

Airplane - Very low budget, and very funny (thank you, JohnDemolition)

Blues Brothers - One of the best movies ever! Even if you don't like blues, you'll like this!

SpaceBalls - A knock-off of Star Wars, too funny!

That's about all I can think of right now, but I'll come up with more.

Plot Summary for
Killdozer (1974) (TV)

Construction workers building an airstrip on a small Pacific Island during WWII encounter an ancient non-material lifeform which has lived in the ruins of an ancient temple for millenia. The entity is of course malevolent and comandeers the earthmoving equipment to the general detriment of all concerned.

Summary written by Bill Leue {leue@crd.ge.com}

While working on the island the work crew finds a large blue rock that they can not move. Unknown to them is that it is a meteorite that fell to earth (Seen at the very opening of the movie). When one of the workers rams the rock (meteor) with a Cat D9 a large blue light is emitted which cause the D9 to stop running. Later when one of the workers goes to use the D9 it starts running on its own and starts killing the workers.

Summary written by {FH37@aol.com}

The Blair Witch Project...............still scares the bejeezus outta me.
The Evil Dead.
Saw...................OMG that had me freaked for days.

I havent seen it, but I heard about a finish movie called "Star Wreck" which is some kind of Star Treck paraody or something. They speak finish (which is not a very nice language, heh). Eitherway, it is the most seen movie ever in Finland.

It is a indie movie (indenpendent movie), made in some university or something in Finland, supposedly took like 7 years todo. I saw a trailer of it, and it actually seemed to be pretty good. Atleast that is the impression I got.

http://starwreck.com/

It is avaible under the Creative Commons (CC) license, so its freely avaible for download and distribution.

Star Wreck - In the Pirkinning is a parody made by fans of Star Trek® and Babylon 5®.