Photoionization to the N-2(+) A (2)Pi (u) state is studied using photoelectron spectroscopy. Experimentally, vibrational branching ratios for the upsilon ' = 0-3 levels obtained for the first time in the 20-34 eV region, show strong non Franck-Condon effects around 22 eV, Using ab initio many body perturbation theory, branching ratios for ionization to the A (2)Pi (u) state are calculated. This study indicates that the Franck-Condon breakdown in the photoionization of the N-2 1 pi (u) electron is due to autoionization from Rydberg and valence states of N-2.