A lot. Some parodies are...
- Space Balls
- Robot Chicken Star Wars
- The Sith Apprentice
- Family Guy Star Wars Episodes
- Grocery Store Wars (short clip on YouTube)
- Chad Vader: Day-shift Manager (YouTube channel)
There are many more, you just have to look them up:)
There are many online information websites related to the Star Wars films, providing casting information, histories and videos. The BBC has a special section dedicated to Star Wars, and Star Wars has its own website which provides information, as well as Wikipedia.
The new Star Wars film being made by Disney won't be out until 2015, so there'll still be 6 films (7 if you count the pilot for the TV series Star Wars: The Clone Wars)
John Williams composed the music for the Star Wars films. He is one of the most successful film composers in movie history. He composed for the films Close Encounters of the Third Kind, Raiders of the Lost Ark, E.T., and many, many more.
6 in the main saga, plus the animated Clone Wars film, totaling 7.
There are six episodes and nine other films.
For the Star Wars films, John Williams is the sole composer. Kevin Kiner has done the composing for the Star Wars: The Clone Wars animated series, but the themes follow the consistency of the John Williams scoring.
Star Wars
Hundreds upon hundreds of actors, from the well known to uncredited extras have acted in the Star Wars films over the 40 years since A New Hope premiered.
George Lucas wrote more than just 3 films but his first three were: THX 1138, American Graffiti, and Star Wars, A New Hope. He went on to write five more Star Wars movies, and The Indiana Jones Series, among many other short films and spin-offs.
I read a long time ago that when George Lucas submitted the idea for Star Wars to Fox, they were not interested in the rights to the merchandise so gave them to Lucas (hence any Star Wars stuff is always branded Lucas Arts or some such). Film merchandise was not really a big thing in the 70s so it was one of the first major films to cash in. From the success of the Star Wars films Lucas went on to create Industrial Light & Magic which created effects for many other films. I understand that Lucas made more from merchandise than the films made for Fox. Shame he got greedy and made Phantom Manace, but that's a whole new story...
JJ Abrams has produced and directed many notable films and TV shows including: Lost, Alias, Felicity, Fringe and Star Trek. In January 2013 it was announced that he will direct Star Wars VII.
There were many Jedi in Star Wars.