Just had to post this.

But but but....

I thought JA was the Oooonly Person In The WOOOORRRRLLLDDD to bring their pet to work with them?

http://www.imnotobsessed.com/2009/07/29/celebs-and-their-dogs-on-set

Acting has such long hours, it must be nice to be able to have your dog on set with you! Jennifer Aniston looks like she's striding somewhere important above, but below you can see she was able to make time to hang out with her dog Norman. (Notice how even Norman looks unhappy to spot the paparazzi?)

Gerard Butler had his dog, too. Somehow, I wouldn't have pictured him with such a little dog (although it's in no way "girlie") LOL.

Meanwhile, Colin Farrell and Anna Friel were spotted filming what looks like a somber scene for their new film 'London Boulevard,' but Anna still had time to run her dog out in between takes.

Anna looks so elegant in her broad-brimmed hat and sunglasses, doesn't she?

And since we are talking about sets...

while Katie Holmes did not bring along a 4 legged friend, she was hard at work on 'Don't Be Afraid of the Dark' in Melbourne earlier today.