Teenager Maisie Williams, who plays Arya Stark in the hit TV show Game of Thrones, publicly criticised British Airways on Twitter at the weekend.
The 17-year-old was unhappy at being denied access to the BA business lounge due to her age.
She received support from some of her followers on Twitter, including singer Ed Sheeran.
British Airways later replied, explaining the company's policy.
But Williams was still not impressed.
And appeared to switch allegiance after Virgin Atlantic stepped in and said she could visit its lounge.
Her tweets received hundreds of retweets on Sunday but that was nothing compared to the message she posted on Monday...