Mark Kermode brings a tribute to the successful Alien series, featuring interviews with the cast members and directors, including Sigourney Weaver and Ridley Scott. This documentary is featured on the 9th disc of the Alien Quadrilogy DVD set, released in 2003.

Do we perceive things as they truly are? Can the assumption that we do leads to dangerous positions, as racism or xenophobia? This documentary reflects on issues like migration, border walls, and the restriction of human mobility from the perspective of people whose field of study could hardly be more detached from these issues: astronomers.

Reonghee and I are illegal aliens. Yesterday, Reonghee died while running away from the Immigrant Office Agents. The company we worked for is only concerned about covering up the mess. I'm going to find Reonghee, whose body the company has hidden somewhere, and give her a funeral that she deserves.

An uptight professional meets his lower-class biological parents for the first time.

A humourous illustration of the natural process of evolution.

这是胡里奥・索托・古尔皮德（《深海》导演）的动画电影。当一种外星物质将佐伊的 DNA 与她奇异宠物的 DNA 混合后，一场妙趣横生的冒险就此展开，人类将……

Detective Matthew Sikes, a Los Angeles police officer reluctantly works with "Newcomer" alien George Francisco. Sikes also has an 'on again off again' flirtation with a female Newcomer, Cathy Frankel.

A look at the possible effect of recovered alien technology on our lives.

An alien vessel crashes on Earth and is discovered by Cindy, Shauna and Becky, three friends beginning what they think to be a casual vacation in the mountains. The alien creatures, escaping a death sentence on their own world, are motivated only by death, destruction and a taste for blood. Ultimately, nothing stands in the way of their gruesome carnage except Cindy, aided by Matt, another visitor from beyond the stars, sent to recover the ship and bring them to justice. Together, they set out to destroy the ship, though its destruction could strand Matt on Earth forever.

An orphaned teenager becomes involved with an alien who was beamed to Earth from another galaxy in a TV signal. Is the alien a dream come true or a harbinger of doom? Originally broadcast as part of "The Wide World of Mystery."