Almost two whole decades have passed since the Predator franchise was forever transformed by a surprising development.

Underwater was an Alien replacement that struggled at the box office but delivered one of the decade's best sci-fi endings.

With the third Avatar film now in theaters, here are some other great sci-fi movies that give James Cameron and Co. a run for their money.

Avengers, with the team going on a membership drive that brought classic heroes and new characters into the fold.

Animation movies are no longer just for children; they have become suitable for all ages with their offering of fantastical adventures and stunning visual experiences. Here are the best animation ...

Over the last century of cinematic sci-fi, movies like Planet of the Apes and The Thing have produced some of the most ...

io9 picks its favorite genre movies of the year, including 'KPop Demon Hunters,' 'Superman,' 'Bugonia,' and more. It’s that ...

HIM, Wolf Man, and MaXXXine are all among the worst horror movies that nevertheless feature some outstanding performances.

Avatar: Fire and Ash’ introduces a fiery new villain, Varang (Oona Chaplin) alongside Colonel Quaritch (Stephen Lang), and ...

(L-R) Bucky Barnes (Sebastian Stan), Ghost (Hannah John-Kamen), Yelena Belova (Florence Pugh), John Walker (Wyatt Russell), ...