(Cover) - EN Showbiz - Bradley Cooper gets a set worker to stand with his dog while he's filming so she can see what he's doing.

The Hollywood star is smitten with his chow-retriever Charlotte and takes her everywhere with him. When he's shooting a movie she always accompanies him on set and Bradley goes to great lengths to ensure she's comfortable.

"He walks around with her on set, introduces her to the cast and crew, and makes sure Charlotte's rarely alone," a source explained. "The only time Brad isn't by her side is when he's filming. And even then, he asks a crew member to hold Charlotte on a leash so he can keep an eye on her."

Bradley worries about Charlotte's diet when they are away from home. She's used to having sumptuous meals so he usually lets her join him and his co-stars in the catering tent when she gets hungry.

"Brad makes sure she gets a delicious steak or some chicken," the insider laughed to National Enquirer. "The crew members joke that Charlotte eats better than them!" (C) Cover Media