1. The Ides of March (Ziua trădătorilor) (2011) - (screenplay) and 2. The Men Who Stare at Goats (2009) - Regizor

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3. Leatherheads (2008) - Saul Keller

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4. Chacun son cinéma ou Ce petit coup au coeur quand la lumière s'éteint et que le film commence (2007) - (segment "World cinema") 5. Good Night, and Good Luck. (2005) - Don Hewitt 6. Good Night, and Good Luck. (2005) - (written by) 7. The Scorpion King (2002) - Arpid 8. Spotlight on Location: The Making of 'The Scorpion King' (2002) - Himself 9. Fail Safe (2000) - Jimmy 10. Enemy of the State (1998) - Lenny 11. Dante's Peak (1997) - Greg 12. Congo (1995) - Richard 13. True Lies (1994) - Faisil 14. Sunset (1988) - Car Attendant 15. "21 Jump Street" (1987) - Caller / ... (2 episodes, 1989-1990) 16. "Valerie" (1986) - The Director (2 episodes, 1990)

1. Directed the short film Waiting for Woody (1998) about a Woody Allen fan. In 2006, Grant was competing for an Oscar in the same category as Woody Allen.

2. Often works with George Clooney.

3. He and George Clooney founded the production company Smoke House after Clooney's production company Section Eight closed down.

4. On the DVD commentary for Good Night, and Good Luck. (2005), George Clooney says that shortly after he met Grant Heslov in 1982, Heslov loaned Clooney $200.00 to buy his first set of headshots, and they have been friends ever since (and later writing and producing partners).