The movie is a story about an attack on Earth by an army of 'alien' [='extraterrestrial'] monsters.
Honesty seems to be an 'alien' concept in that family. [=people in that family are not honest]
The whole idea of having a job was 'alien' [='unfamiliar, foreign'] 'to' him.
(..) -Okay, Buzz, when I say go, we're gonna jump in the basket. Buzz! -No! -Mom, if I eat all my pizza, can I have some alien slime? This cannot be happening to me. -A stranger. -From the outside. Greetings. I am Buzz Lightyear. I come in peace. (..)1995 Toy Story
(..) Hey, guys, look! It's the real Buzz Lightyear! You're mocking me, aren't you? Oh, no, no. No, no, no, no, no. Buzz, look, an alien! Where? Yes! It's Sid! Don't move! I thought he was at summer camp. (..)1995 Toy Story