Ah, I had this question yesterday! My favorite is definitely Lobot from Star Wars. He is kind of human though, so I think WALL-E is my next favorite if the human element must be completely avoided. Who is your favorite intelligent movie computer? KITT from Nightrider?
Oh I think I'm kinda siding with the robot from interstellar I am a little biased and would say R2D2 though because he's just so handy and gets you out of tight spots