These wildly different films explore the wondrous, and sometimes terrifying possibilities of contacting extra-terrestrial life.

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is being visited by creatures from light-years away.

Steven Spielberg and aliens is like cinematic peanut butter and jelly. His "Disclosure Day" is a thriller about a massive government alien cover-up.

Add Yahoo as a preferred source to see more of our stories on Google. Zefram Cochran outdoors in Star Trek: First Contact - Paramount Veteran actor James Cromwell began his association with "Star Trek" in the 1990 "Star Trek: The Next Generation" episode ...

Steven Spielberg's Disclosure Day has audiences buzzing about good alien conspiracy films. We've got 5 great recommendations.

Five Steven Spielberg movies have been about aliens, including Close Encounters of the Third Kind and Disclosure Day, but which of them is the best?