Aliens over Alien? You cannot be serious?! If more is your thing, then go see Transformers... biggest guns, military, chase scenes, explosions, soundtrack, over use of rock music and a shed load of shapeshifting seagulls, I mean aliens! You'll be heaven.

Star wars is most certainly a continuing storyline - Bond is always a bone of contention as some later ones are clearly better than some previous films.  Are they sequels though?