Back to the Future is widely considered one of the best sci-fi movie trilogies of all time, but there are five that are ...

Disclosure Day' concludes Spielberg's thematic trilogy on extraterrestrial life, following 'Close Encounters' and 'E.T.', reflecting his lifelong fascination with intelligent life beyond Earth.

From The Godfather, to Star Wars, to The Lord of the Rings, these great trilogies are genuinely amazing from start to finish.