Principles of Life (Romanian: Principii de viață) is a 2010 Romanian drama film directed by Constantin Popescu and starring Vlad Ivanov.
It is set during 24 hour in the life of a middle-class man with a poor connection to his family.
[1] It was Popuscu's second feature film, released half a year after his debut, Portrait of the Fighter as a Young Man.
[2] The film was written by Răzvan Rădulescu and Alexandru Baciu.
Filming took place in Bucharest from 21 September to 20 October 2009.