This week on The Video Store Podcast, I am recommending four movies built around one of the simplest and most reliable science fiction ideas there is, shrinking people down. It is a strong trope because every one of these films understands that once a character gets small, nothing has to be exotic to feel dangerous. A bloodstream can look like deep space. A shopping cart can feel absurd and threatening at the same time. A backyard can turn into a full scale survival story. The fun of these movies is not just the effect itself, it is the way each one finds its own tone inside the same basic setup.

Fantastic Voyage starts this set in an old-style studio style. Richard Fleischer directed it, Raquel Welch was still early in her career, and the movie ended up winning Academy Awards for art direction and special effects. Isaac Asimov wrote the novelization, which helped give the film an added layer of science fiction prestige even though the movie was not adapted from one of his earlier books. It is still one of those sixties films where the production design does a lot of the selling. You are watching people turn the inside of a human body into a full cinematic world, and they do it with real confidence.

The Incredible Shrinking Woman takes the same basic concept and pushes it toward satire. Lily Tomlin is the main reason to see it, and she is surrounded by exactly the kind of bright, slightly unreal suburban world that makes the jokes work. Jane Wagner wrote it, Joel Schumacher directed it, and the movie has a cast that includes Charles Grodin and Ned Beatty. There is also a nice eighties detail in the score, since Suzanne Ciani handled the music, which gives the film one more thing separating it from the older version of this idea. It is not the most famous title in this group, but it feels very specific to its moment, especially in the way it folds consumer culture and household products into the premise.

Innerspace may be the easiest recommendation here because it is so good at being funny, fast, and a little chaotic without losing track of the effects work. Joe Dante directed it, Dennis Quaid and Martin Short make a very good mismatch at the center, and the movie won the Academy Award for visual effects. This is one of those late eighties studio movies where the effects are both impressive and funny. It also has that Dante who has a habit of making a mainstream movie feel just a little off center. You can sense the touch of Industrial Light and Magic in the technical side, but it never turns into a dry demonstration reel.

Honey, I Shrunk the Kids is a joy to watch. Joe Johnston made his live action directing debut with it, Rick Moranis is exactly right for the inventor at the center, and Disney turned a backyard into a full adventure landscape. It was a major hit, and for a while it stood as Disney’s highest grossing live action film. Part of what makes it hold up is that so much of it was built around practical effects, oversized sets, models, puppetry, and carefully staged perspective tricks. It also had Tummy Trouble attached in theaters, so for a lot of people there was a Roger Rabbit bonus built into the experience. That is a pretty good rental memory to have.

What I like about putting these four recommendations is that they show how flexible a shrinking movie can be. One plays it as a polished sixties science fiction trip. One turns it into satire. One uses it for special effects comedy with a little manic energy. One makes it into a family adventure that a lot of people probably first met on cable or VHS. Same basic hook, very different results. That is usually a good sign you have a real movie trope and not just a gimmick.

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