Where can you get a knockoff of the dress Helen Mirren wore when she won the Oscar?

You can find a knockoff of the dress Helen Mirren wore at various online retailers such as Amazon, eBay, or specialized fashion websites that offer replica dresses. Additionally, you might check fast fashion brands like ASOS or Zara, which often create similar styles inspired by celebrity looks. For a more customized option, consider platforms like Etsy, where independent designers may offer replicas.