Actress Kristen Stewart, who will be seen in war drama "Billy Lynn's Long Halftime Walk", feels the military has given direction to many off-track lives and has given them a purpose in a positive way."The military has given direction to so many off-track lives, and really substantiated a lot of people and given them purpose and in a positive way," Stewart said in a statement. Directed by Ang Lee, "Billy Lynn's Long Halftime Walk" is based on a novel by Ben Fountain. The drama is set in Iraq and the US, and is told from the perspective of a 19-year-old private Billy Lynn (played by Jow Alwyn), who gets famous after a video capturing his rescue of a comrade in Iraq went viral.The film shines the light on the celebrations to honour the war heroes, and what really happened in the field. The Sony Pictures Entertainment film will release in India November 11. Stewart feels "not everyone is necessarily prepared for the effects of being involved in something so much greater than you, which can be a positive thing, but it can also be something that is very consuming".