The Spierig Brothers’ (Daybreakers, Undead)latest genre romp has time travel paradoxes and Ethan Hawke on the brain. And it is very, very pretty. (And it is very, very good.) Have a look, there is almost no spoilers therein.
From the Robert A. Heinlen novel “All You Zombies” the story of a time-traveling Temporal Agent on his life-long assignment where he must pursue the one criminal that has eluded him throughout time.