As IDLYITW noted, red carpet events are boring, tedious affairs where photogs and media are given instructions on where exactly to stand in order to take pictures of stars who pose for about 10 seconds before shuffling off to an extravagantly catered event.
At times, the entire thing is a clusterfuck like at the NYC premiere of Catching Fire where photogs are shouting for a window to shoot. Jennifer Lawrence was tired of all them shouting at her to pose for them so she screamed back as she walked away.
C’mon, you guys. Quit being so aggressive. She’s posed enough for you assholes. Just let her get into the event to enjoy her foie gras and champagne in peace.