From 'Her' to 'WALL-E', these genre-blending sci-fi films are all perfect for Valentine's Day.

Unlike their terrestrial counterparts, the best sci-fi romance movies of all time aren't just filled with the usual grand romantic gestures and passionate moments. Instead, they use their sci-fi ...

From Star Trek to Star Wars, Dune: Part Two to Galaxy Quest, these movies stand as the best films in the space opera subgenre ...

We asked our readers to name their favourite films in the sci-fi genre – and these were the titles that came up most often.