There are multiple different genres of fiction out there in the world of entertainment, whether written down in novels or brought to life in the film media. Fiction can obviously be broken down into multiple categories: general fiction can be anything that's not based on real accounts; fantasy fiction often involves lands populated by elves, dwarves, golems, dragons, wargs, and the like; and science fiction, for example, usually incorporates space, aliens, technology, monsters, and other such elements. My personal favourite is sci-fi...that's why I prefer the war-torn wasteland of Fallout 3's setting to the sprawling, mystical world found in The Elder Scrolls IV: Oblivion, for example. There's something that draws me to that type of entertainment...I guess I just prefer railguns to wizardry.
However, one sci-fi creation can differ wildly from another. For example, while you may experience a less serious, more humourous take on an alien invasion such as in Duke Nukem 3D or Mars Attacks!, you can also find much more strikingly realistic experiences and fleshed-out universes such as those found in Mass Effect or the Star Trek series (I LOVES ME SOME TREK). While I love many forms of sci-fi, there's a particular movie series that has always stood out to me amongst the rest: the Alien series.