I think all celebrities have the potential to be big jerks given the right opportunity so judging them based on 1 event is kinda harsh but here are a few of my stories...
the i dream of jeannie lady, i don't feel like googling her name i could care less, she's extremely rude, i waited in line like everyone else and i only wanted to shake her hand and say hi, but because i didn't want to buy anything a.k.a. i had no money, she literally turned around and didn't acknowledge my existence, yet the guy from the show was very nice and he shook my hand, so she's a diva from what i saw, even her personal assistant has a similar attidute.
andy dick is pretty nice despite his name, but you gotta prove to him you aren't a hater, i told him he was good in so and so movie
shaq is pretty rude if he's in a hurry, he almost ran me over with his car while i was crossing a cross walk
booger from revenge of the nerds was pretty rude when like the i dream of jeannie lady noticed that i had no cash to buy an autograph so he kinda acted like i was cramping his style even though there were zero people waiting to talk to him, i just wanted to say hi and shake his hand
the fat pirate and the little pirate from pirates of the caribbean were really nice
the blue lady from that show on the sci-fi channel was nice
the dude that plays thor is so nice that he goes out of his way to sign autographs even when his handlers tell him he has to go
same for the guy that plays loki, he's almost as nice as thor and likes to sign autos
robert downey jr seems pretty nice, he does sign autos but only a limited number
the chick from how i met your mother and was also in avengers is really nice, she will take a photo with you easily
anthony michael hall is a way nice guy who will always take a photo with you unless he's eating dinner or something, but he will talk to you on the steet and actually have a conversation
captain america and hawkeye didn't want photos, they seemed kinda standoffish
samuel l jackson was very rude to me, don't know why, but i think he was in a bad mood, he was tweeting i noticed, so i didn't even talk to him til he was done tweeting, and i think he didn't want me to talk to him so it's possible he was pretending to tweet but i saw him typing on his giant iphone, he typed on it for a good 10 minutes, after he was done i asked him if i could get a photo with him and he didn't really respond, so i asked again and put my hand on his shoulder and he said 'noo' pretty quietly, and he stood next to me and i tapped his shoulder a 2nd time breifly and he said 'stop punching me!' and he was joking cuz i could see him smile a bit and he stood next to me for like 5 more minutes and i think he expected me to paparazzi him but if someone says no to a photo i respect their wishes, funny thing is during this time a professional photographer came up and snapped about 2 photos of me and him but i don't know who the lady was and will probably never see those photos, as he walked away i asked 1 more time and he said 'noooooo' in a very quiet voice and i said ok, then i told him how i just won a dr pepper contest to go to the avengers world premier and he turned to me and said 'damn? really?? haha', and he stood turned to me for like 5 minutes and he signed this one kid's t-shirt, and he expected me to photograph me but i never turned on my phone, he walked away and went to the after party and i just took a shot of the marquee, i think it's pretty messed up he didn't want a photo given the fact that he stood near me for 20 minutes and signed a kid's t-shirt but didn't have time for 1 photo with a contest winner, i don't hold a grudge i'll still watch his movies but will know not to ask next time if there is a next time
clark gregg aka agent coulson, he's a cool dude, he took 2 photos with me, as he was walking out of the world premiere, the other celebs seemed to slip away quickly, like scarlett so can't really comment on what she's like
paris hilton, i was at a concert and she was in row 0 (press section) and i was row 1, and she posed for my camera like 10 to 20 times (even when some of those i was taking photos of the band), she must really like people taking pics of her, but she seemed like a nice person, that very night she got pulled over by the cops for driving with no lights on and she was driving with a suspended license (that's the night she went to jail).
tim & eric, back in 2008 they were nice, 2009 littler jerky, 2010, full blown jerks, 2011 a holes, 2012 didn't see them this year but i'm guessing their on a downward spiral but eric was nice to me once and gave me free vip tickets so can't complaint too much
beck, ahh the singer jerk, i was at the grand opening of the emp museum and i was in the lobby waiting for my ride and i had a beck CD in my pocket, i had odelay, and beck walked down the stairs and i said 'hey beck!' and i took the CD out of my pocket and he walked so fast past me that it was amazing, he looked like a skinny crackhead heroin addict that happened to also be anorexic, anyways, his attitude to me was the exact opposite of John Lennon's attitude to his fans who waited for him at his apartment entrance. And I didn't even wait for beck i didn't know he was there, i just happened to go to the concert and brought my beck cd thinking maybe i'd see him, i was the only person in the room and beck ignored the only true fan in the room, was such a rude experience i haven't purchased a single beck song or album ever since, haven't listened to em either
there are countless others... i can't really think about em... well...
zooey deschanel, she looked at her fans, watching from her van, she watched us for a good 20 minutes, she was gracious to give us a piece of her pie, her vegan pizza, she gave us the entire thing uneaten, cold, gross, i took a bite just to say i had a slice of zooey pie but it was kinda a wee bit lame that she didn't come out to sign anything... but no big deal i had her pie lol
#2 from star trek was nice, he was prolly on his way to go #2 but he stopped to take a photo, nice guy
seth rogen, ahh.. he's kinda a jerky guy, my gf asked him for a photo at comic con and he had just walked into an action figure booth that i was already in, she said please and he said and i quote, "Sorry... I've got some *SERIOUS* shopping to do" as he looks around at the action figures, I was already there checkin out some japanese kubrick figures and I said 'd-bag' and he turned his head hahahah, i didn't know he heard me but he did, anyway he was probably hounded all day no big deal just given the wrong time at the wrong place anyone can be a jerk but some are jerks in most places so just gotta get lucky, i think seth also said he didn't want ppl to recognize him but in that very same convention there was a 2,000 foot poster of the front cover of 'knocked up' with his monolithic face on it so if he didn't want ppl to recognize him maybe don't walk in a room where your face is as big as the wall.
there's more i'm sure i can't think of em right now..... but there's more, seems like there's countless... i'm sleepy
zatch galafanakis is a nice guy and took photos easily pre-hangover, haven't seen him post-hangover so can't attest to his current status of jerkiness...