Was it for her Birthday? That was the sort of thing that my mum did for me when I was a kid, movie then dinner. I loved it.
No, it was not for her birthday. We try to do things like this with her a lot, but sometimes we can't because of her behavior.
Glad she behaved well for you. Reward her with another fun outing while things are good.
It is not my daughter who causes trouble - it is my son who prevents us from doing fun things. Some things overload him like crazy. A while back we went to a museum exhibit and it fascinated him (bored my daughter, but she was just whiny, not bad, really). His behavior was perfect.
Our next outing was a simple picnic in a park and even though he seemed to love it at the time, he was freaked out about it for days!
Count the good days in "CAPITAL NUMBERS!"