Bradley Cooper and his rumored girlfriend Irina Shayk need to brush up on their royal etiquette skills, as they didn't know which fork to use at Buckingham Palace.
The 'American Sniper' actor and his sports illustrated model, who attended an event at Buckingham Palace, which was hosted by Prince Charles, but were overheard saying to each other that which fork to use, the Mirror has reported.
Cooper and Shayk have been spotted together multiple times.
