Who knew artificial intelligence could get so emotional?

In this bonus compilation, we count down our Top 5 A.I. characters in sci-fi cinema - from HAL 9000 in 2001: A Space Odyssey to Samantha in Her, the replicants of Blade Runner, and the lovable WALL-E. Drawn from our archives, these clips explore how A.I. in film has challenged what it means to be human - sometimes terrifying, sometimes tragic and sometimes completely adorable.

If you enjoyed this episode make sure you go back and listen to our previous epsiodes in full:

• Her

• 2001: A Space Odyssey

• Blade Runner

• WALL‑E

• Terminator 2