The set of sixteen films below can be partitioned. Each partition is of four films that have something in common. I invite you to figure out the partitions and commonalities. You'll find that the four commonalities have, themselves, something in common.
- Baby Driver (2017)
- Beautiful Boy (2018)
- Blue Velvet (1986)
- Bunny Lake Is Missing (1965)
- Caned (2015)
- Chu Chu and the Philly Flash (1981)
- Dazed and Confused (1993)
- Hacksaw Ridge (2016)
- Hester Street (1975)
- Idle Hands (1999)
- Lightning Lariats (1927)
- Maria's Lovers (1984)
- Skidoo (1968)
- The Barbarians (1987)
- The Hows of Us (2018)
- Zachariah (1971)
Hint added later:
Three of the partitions relate to the films' titles; one partition requires knowledge of the films beyond their titles.
Hint added even later: Two of the partitions are
"this film's title has a word with…".
Another partition is
"this film's title is…".
And the last is
"this film starred…".