| 100% | COEN | 4 | Last name of directors Joel and Ethan (they're brothers) |
| 69% | COEN | 4 | Last name of moviemaking brothers Joel and Ethan |
| 65% | COEN | 4 | Last name of filmmakers Joel and Ethan |
| 61% | COEN | 4 | Last name of "Inside Llewyn Davis" directors Joel and Ethan |
| 60% | COEN | 4 | Last name of filmmakers Ethan and Joel |
| 60% | COEN | 4 | Last name of filmmaking siblings Joel and Ethan |
| 59% | COEN | 4 | Last name of "Bridge of Spies" screenwriters Ethan and Joel |
| 50% | CURRY | 5 | Last name of NBA brothers Steph and Seth |
| 50% | ALOU | 4 | Last name of baseball brothers Matty, Felipe, and Jesús |
| 50% | JONAS | 5 | Last name of singing brothers Joe, Nick, and Kevin |
| 49% | MAHRE | 5 | Last name of brothers Steve and Phil, 1980s Olympic skiers |
| 49% | ALOU | 4 | Last name of baseball-playing brothers Jesus, Matty, and Felipe |
| 49% | ALOU | 4 | Last name of baseball-playing brothers Matty, Felipe, and Jesús |
| 49% | WATT | 4 | Last name of football brothers J.J. and T.J. |
| 48% | COEN | 4 | Last name of the filmmaking brothers who made "Raising Arizona" and "Fargo" |
| 48% | DUFFER | 6 | Last name of brothers Matt and Ross who co-created "Stranger Things" |
| 45% | SMOTHERS | 8 | Last name of Tom and Dick, folk comedy "Brothers" |
| 44% | COENS | 5 | Film directors Joel and Ethan |
| 42% | ROOSEVELT | 9 | Last name of Presidents Theodore and Franklin D. (they were distant cousins) |
| 42% | OBAMA | 5 | Last name of Sasha and Malia |
| 42% | BAGGINS | 7 | Last name of Frodo and Bilbo |
| 42% | COEN | 4 | Last name of the directors of "Fargo" |
| 42% | GIBB | 4 | Last name of the Bee Gees brothers |
| 42% | GIBB | 4 | Last name of the brothers in 33a |
| 42% | BURTON | 6 | Last name of Tim, director of Beetlejuice |
| 42% | BABBITT | 7 | Last name of 30- and 35-Across |
| 41% | UNSER | 5 | Last name of two hall-of-fame auto-racing brothers |
| 41% | COEN | 4 | Last name of the directors of "Hail, Caesar!" |
| 41% | ALOU | 4 | Last name of a trio of baseball brothers |
| 41% | RUSSO | 5 | Last name of both "Avengers: Infinity War" directors |