I've met most every celebrity that starred in the film "Big Fish" back during filming in 2002-3 (because I was paid to be in two scenes, too). Nothing remarkable, but, I'll give you my two "stories" involving two of them:

1. Danny DeVito
Was always angry and frustrated with us. Although, that's a given because we actively didn't pay attention to him (despite his role as circus leader) and it fit his character, so it's hard to say he wasn't justified.

2. Director Tim Burton
Granted, I only interacted with him twice, my fun story with him is
>lunch break
>on-site was a literal forest near a river
>all on-site food and drink were in camping coolers
>everything was filled with soda
>I hate soda
>I looked in every cooler next to every tent I could find
>finally found a cooler that had something not-Pepsi
>bring back a purple Gatorade to my friends at the camp
>"Where did you find that?"
>"Oh, it was in a cooler behind that tent over there. Filled with Gatorade, but it was just this color."
>they went to get their own
>came back empty-handed
>"Anon, you idiot. It had Tim Burton's name written all over it."
No one "found out" and no one got in trouble or upset, but that's my "Big Fish" story -- I stole Tim Burton's Gatorade back in 2002!