Enforced Method Acting: Sean Connery is truly terrified of spiders. The legs of a stuntman were used when the tarantula crawled onto Bond. Note the shot when the spider is on his shoulder — it's walking on a pane of glass. Once you've seen it you can't unsee it.
No Budget: United Artists only lent $1 million. The art director got an extra cash from the producers' own pockets, and the special effects people convinced UA to give an extra $100,000 to do the Collapsing Lair.
Bond original line was simply "I am James Bond", but Sean Connery felt it was rather weak and went off script, resulting in one of the most famous movie lines of all time.
Director Terence Young, who once had turned Lois Maxwell down on the grounds that she looked like she "smelled of soap, not sex", offered her either Moneypenny or Sylvia Trench, but she was uncomfortable with a revealing scene in the screenplay. She ended up playing Moneypenny.