I am going to preface this recommendation to fans of Batman. I think it takes a special level of fan to be able to pull off a fan film and a whole other level to do one that doesn't sux. This fan made film is Batman: Death Wish and here is what the film notes say:

• Batman, Robin and Nightwing investigate a mysterious assailant who is targeting the kingpins of Gotham's criminal underground. As more of the rogues gallery is ensnared, a disturbing revelation about the attacker's identity takes shape.
• "Batman: Death Wish" is a Batman fan film directed by Matthew Hiscox (Army of Two: 40th Day, Blunt Trauma) and written by Jennifer Zhang

And honestly it doesn't suck.  But being a fan, you do tend to give a bit of leeway  but not much is needed.  It really was fun. 

Fan Made Portal Movie

Portal fans will appreciate this fan made short. Made by Dan Trachtenberg it is called Portal: No Escape and it is amazing just how good this production is.

Thanks to IO9 for the listing

Check out Kaydara

I just finished watching Kaydara. This is a fan made movie based in the Matrix universe but not strictly speaking a "Matrix" movie.

The film was conceived by Raphaël Hernandez and Savitri Joly-Gonfard and is almost an hour long. The visuals are stunning as is the sound track (if a bit Blade Runner sounding at times or even Terminator) .

The film is likely to be confusing to people that have not seen the Matrix because it leans heavily in the tech that was prevalent in all three of the Matrix movies right down to agents and a good stand in for Neo.

You can watch the movie on line here

Fan Made Ender's Game Trailer

Wow! fans of Orson Scott Card's Ender's Game will enjoy this fan made Ender's Game movie trailer. IO9 blog writes: Steven Davis mashed together clips from some of our favorite science fiction films.
You can see some of the clips from previous films and TV shows but it's pretty seamless. I would definitely go for this one.