This Tumblr is the "Where Have I Seen That Guy Before?" of Costumes

For the costume nerds and those of us who can't help but go "Haven't I seen that before?" and take to Google, Recycled Movie Costumes is there for us.

Star Trek and Gilligan's Island share this coat. Doctor Who shared one of Romana's costumes with Blake's 7. And this dress has shown up just everywhere. It's a massive, well-researched, time suck. Enjoy!