Of all the sci-fi subgenres that exist, one of the most versatile is aliens. The idea that we are not alone in the universe offers countless story opportunities, and it's fascinating how the best ...

Ridley Scott has plenty of notable sci-fi hits under his belt over the last 40 years, but none have stood the test of time as well as Alien. He directed the 1979 classic on a budget of only $11 ...