Dog Day Afternoon movie plot

Sonny) considered most unlucky in American history a bank robber. One midsummer afternoon, Sonny and his companion Saylor) broke into the Brooklyn Bank of New York City and prepared to carry out a robbery. But the bank had just completed the transaction and there was no cash in the vault. The hapless Sonny and Seiler turned to take hostages and confronted the police to make demands. But 4 hours later, the scene of the robbery was made like an amusement park by onlookers and busy police, and Sonny stepped out of the bank to question the police and won the crowd's applause. Eight hours later, the bank robbery appeared on the live broadcast of the TV show. Everyone was as happy as making a movie. At this time, night fell and the hostages also developed Stockholm syndrome. The farce is still going on.