Repo Man

Everything About Fiction You Never Wanted to Know.
It happens sometimes, people just explode. Natural causes.
Agent Rogersz
I don't want no commies in my car. No Christians either.
Bud

A Cult Classic comedy-sci-fi movie directed by Alex Cox and released in 1984. Known for its predominance of Hey, It's That Guy!'s, comic vignettes, outlandish scenarios, memorable dialogue and well-liked soundtrack, made entirely out of songs from famous Punk Rock bands like Black Flag, Suicidal Tendencies, Circle Jerks, Iggy Pop and others.

Young LA punk Otto Maddox (Emilio Estevez) has a really bad day: he gets fired from his job at the supermarket, sees his girlfriend cheat on him with his best friend at a party and finds that his ex-hippie parents donated all his money to a televangelist. He meets Bud (Harry Dean Stanton) and becomes a repossession agent. The life of a Repo Man stimulates him a great deal more than the increasingly phony world of LA punks. Through various encounters and a mad rush between competing repo men and the CIA to locate a 1964 Chevrolet Malibu, Otto learns that "the life of a repo man is always intense".

Based on a some true stories Cox picked up when he worked as a repo man. There aren't many aliens, but there's plenty of shrimp!

Alex Cox released a sequel named Repo Chick in 2009.

Not to be confused with Repo! The Genetic Opera or Repo Men. Definitely not to be confused with Reaper Man.

Tropes used in Repo Man include:

Lite: I was into these dudes before anyone. Wanted me to be their manager. I called bullshit on that. Managing a pop group is no job for a man.
Otto: (Regarding the "lounge" performance by the Circle Jerks) I can't believe I used to like these guys.

Leila: Otto! What about our relationship?
Otto: (Pauses and looks back) Fuck that.