According to Variety, Leonardo DiCaprio's Appian Way production shingle will develop and produce a feature film adaptation of Kurt Vonnegut's classic dystopian novel Cat's Cradle, in partnership with manager-producer Hillard Elkins' Elkins Entertainment.

The roject will be written by James V. Hart (Sahara) and his son Jake Hart (Glengarry, Bob Ross).

Vonnegut's "Cradle" is an apocalyptic tale about the planet's ultimate fate and a race to recover the world's most dangerous substance, Ice-Nine, a new form of ice that freezes at room temperature.