The film's life began as a script called "The Cellar" (which had nothing to do with the Cloverfield universe, and was at one time also known as "Valencia"). The script was acquired by J.J. Abrams' production company Bad Robot and adapted to become "10 Cloverfield Lane".
The name of the gas station Michelle stops at to refuel is named "Kelvin". This is an Easter Egg J.J. Abrams slips into all his projects, a tribute to his maternal grandfather Henry Kelvin who owned an electronics company and influenced Abrams as a boy.
A letterhead is seen with "Bold Futura" and Tagruato Inc. on it. This is tied directly with the films viral marketing campaign and the original Cloverfield (2008), as SLUSHO! and Bold Futura are subsidiaries of the fictional company Tagruato. Howard worked with satellites for Bold Futura in this film, Rob was going to Japan to work as Vice President of Marketing for SLUSHO!.
John Gallagher Jr.'s character Emmett handles a VHS tape of the fictitious movie "Cannibal Airlines"; this is an Easter egg, one of a series of satirical VHS packages created by writer Rob Schrab and used as decorations at producer J.J. Abrams' Bad Robot film production offices.
The story of this film resembles Retreat (2011), which is about a couple who retreats to a deserted island to be invaded by a man who tells them there's been an epidemic outbreak and that they need to stay isolated inside.
The jigsaw puzzle Emmet, Michelle and Howard are working on is called catfish. A catfish is someone who pretends to be someone they're not using on social media to create false identities, particularly to pursue deceptive online romances. This could possibly be foreshadowing that isn't what he appears to be.
The trivia items below may give away important plot points.
Although they take place in the same universe, the film has no apparent connections to Cloverfield (2008). However, producer J.J. Abrams has stated that the studio has a plan to tie the two films, as well as possible future films in the franchise, together.
The film was shot in chronological order, aside from a few reshoots mostly insert shots, i.e. The shot of Howard asking Michelle "How's it going?" through the vent in the air shaft, John Goodman was wearing a fake beard because he had shaved it off.
The plotline of someone being held inside a bunker under the pretense of the air outside being polluted was also used in the second season of Lost (2004); in both instances, the deceiver eventually dies during an altercation with the deceived person. Both this sequel and Lost were produced by J.J. Abrams.
Has a similar plot to Metal Hurlant Chronicles: Shelter Me (2012). A young woman, Michelle Ryan, wakes up to find she's in a bunker with a man, James Marsters, who has told her it's the end of the world. This episode is based on a story of the same name by Daniel R. Wickline and Mark Vigouroux in the anthology comic magazine Metal Hurlant, issue #9 cover-dated Nov/Dec 2003.