The video for "The Man" also features Dwayne "The Rock" Johnson and a mocking name check for Leonardo DiCaprio.
“I think people undervalue ownership,” said Watson, who stars in Greta Gerwig's adaptation of the Louisa May Alcott classic.
The singer made a subtle dig at the mega-manager after a public battle over the masters of her older albums.
The music executive's Twitter post came amid an ongoing clash between Big Machine Label Group and the superstar.
The label pushed back after Swift said Scott Borchetta and Scooter Braun won't let her perform her own songs at the upcoming American Music Awards.
In a social media post slamming her ex-label boss Scott Borchetta and music manager Scooter Braun, the musician asked fans for help. Many came through.
The musician asked her fans to put pressure on Scott Borchetta and Scooter Braun to allow the performance to go on.
The nine-time Grammy winner says the change in ownership of Swift's recordings is "just the way business goes."
The pop star put an end to their feud after conceding that Swift's new song is a "jam."
The producer acquired all of Swift's music catalog through 2017 in a contentious deal earlier this year.