Smart answer:

Your search for Who directed War of the Buttons returned the following results:

Christophe Barratier

War of the Buttons is a 2011 adventure film written by Christophe Barratier, Stéphane Keller, Thomas Langmann and directed by Christophe Barratier.

Source:

directed by John Roberts

War of the Buttons is a 1994 drama adventure film directed by John Roberts.

Source: