"Our perception of celebrities in Hollywood is not the reality. The reality of our lives is so much like everyone else's life. We have family members we love, everyone gets up in the morning, they have three meals a day and they go about their business," Spacek explained to The Huffington Post.
"Of course, [Brad Pitt and Angelina Jolie's] children don't care who they are. Isn't that what we love about them? We see her children holding her hands and arm and dragging on her coat. This is a beautiful, talented mega-movie star and she's holding this little child's hand."
Spacek went on to say that while the celebrity experience was overwhelming for her at times - especially after winning an Oscar for her role in Coal Miner's Daughter - she is lucky to have family and friends who have kept her grounded.
"Fame sweeps you away. I had to go home every six months to remember who I am. The night I got home from the Academy Awards, there were four dozen yellow roses from my hometown," she recalled. "It was a reminder of who I truly am.
"It's impossible not to get swept away. Having children, they don't care who you think you are."