The captain's announcement is not realistic. There's not enough "uuuuhhhhs" interspersed with the actual words.
"Uhhhh... This is your, uhhh , Captain speaking. We are, uhhh, now traveling at, uhhh, 15,000, uhh feet. We are about, uhhh, five hours from our, uhhh, destination..."
(It was explained to me that all these pauses are due to the pilots paying less attention to their PA than their flying, and I have no problem with that. 'Better a few uhhs and ehhs than nosediving into the Earth', I always say. But if you are aiming for a realistic passenger simulator, I demand an accurate amount of "filled pauses" interjecting the pilot's announcement!)