Best science fiction movie

Well the first great sci-fi movie and my personal favorite is A Space Odyssey: 2001. It was made in the 70's and has an awesome story. 
Another one of the early ones is the original Star wars. 
The stories are amazing and arguably some of the best.

 the main point of the story Space Odyssey is: 
A spaceship has a artificial intelligence, and then goes crazy, so the guy has to shut it down. 
Not the best plot. But for it's time, it had great music and great special effects.
It's a good story but now we know that the things that happen in the movie never be true.

Star wars:
i like star wars,my favourite movie is the third 
my favourite character is anakin and i also like padme. 
i think the movie is very interesting and i am enjoying every time when i watch it.

It's an interesting story, that has many fiction because for all the spaceships and the travels to other planets, the robots, the monsters, etc.

If i could see the future and I could change it, may I would change some bad things for goodthing but i dont know.