Best Sigourney Weaver movies to watch on Amazon or iTunes

Here is a list of the best Sigourney Weaver movies to watch on Amazon Prime or iTunes.

My favorite ones are "Alien" quadrilogy and "Avatar" dilogy.

Also here are the best movies of all time and genres.If you like movies of specific genre, here are my list of the best action, adventure, animation, biography, comedy, crime, documentary, drama, family, fantasy, history, horror, musical, mystery, romance, sci-fi, sport, thriller, war or western movies.

If you have more time, feel free to check out my other lists of the best dilogy, trilogy, quadrilogy, pentalogy, hexalogy, septology or octology movies.

Or feel free to check out my other movie lists of the best movie directors, actors or actresses.

Or if you have even more time check out this timeless sagas: Saw, Fast and Furious, DC Universe, Marvel Universe, Spider-Man, X-Men or James Bond