| 100% | ANTS | 4 | Giant things in the 1954 sci-fi film "Them!" |
| 59% | ANTS | 4 | Giants in the 1954 horror film "Them!" |
| 48% | SETI | 4 | Institute in the 1997 sci-fi film "Contact" |
| 48% | CROPCIRCLES | 11 | Signs in the 2002 sci-fi film "Signs" |
| 47% | THEM | 4 | Classic 1954 sci-fi film with an exclamation point in its title |
| 47% | EFFECTS | 7 | "Special" things in sci-fi films |
| 47% | THING | 5 | "The ___," 1982 sci-fi horror film starring Kurt Russell that got a nostalgic nod in "Stranger Things" |
| 45% | JAMES | 5 | Actor who played the title role in 1951 horror and sci-fi film The Thing from Another World |
| 44% | ARK | 3 | Giant boat in the 2014 film "Noah" |
| 43% | YMASUMAC | 8 | Singer seen in the 1954 film "Secret of the Incas" |
| 43% | THEM | 4 | 1954 sci-fi film |
| 43% | ROME | 4 | Italian city in the 1954 film "Three Coins in a Fountain" |
| 42% | THEMATRIX | 9 | 1999 sci-fi action movie added to the National Film Registry in 2012: 2 wds |
| 41% | THEM | 4 | Classic 1954 sci-fi film |
| 40% | UFO | 3 | Sci-fi film with Alex Sharp and Gillian Anderson about events at the Cincinnati Intl. Airport, released straight to video in 2018 |
| 40% | UFO | 3 | Obscure object in the sky as portrayed in sci-fi films: Abbr. |
| 40% | STARMAN | 7 | 1984 sci-fi film starring Jeff Bridges in the title role |
| 40% | SUBTITLES | 9 | They translate the spoken words in a foreign film |
| 40% | THEM | 4 | Sci-fi film of 1954 |
| 40% | HAMM | 4 | Actor Jon who plays a hologram in the sci-fi film "Marjorie Prime" |
| 40% | BEANSTALK | 9 | Plant that heavily features in the 2013 film "Jack the Giant Slayer" |
| 40% | THEM | 4 | 1954 sci-fi film starring James Whitmore and Edmund Gwenn |
| 40% | ALIENROMULUS | 12 | New sci-fi horror movie that's the seventh film in a franchise that began in 1979: 2 wds. |
| 39% | NEO | 3 | "The One," in a sci-fi film series |
| 39% | WATER | 5 | "Avatar: The Way of ___," 2022 sci-fi film that was in production for 12 years |
| 39% | THEMATRIX | 9 | A 1999 Sci-Fi film in which Keanu Reeves - whose birthday it is today - portrays the main character, named "Neo": 2 wds. |
| 39% | SOYLENTGREEN | 12 | 1973 sci-fi film starring Charlton Heston set in the year 2022 |
| 39% | AREA | 4 | "___ 51," 2015 sci-fi horror film with the number of a famous, highly classified Air Force facility in its title |