The video was originally posted on the official Don't Worry Darling Twitter account, but was later reposted by MovieRankings.net.
At the time of writing, the video has amassed over 2.2 million views, but the accompanying comments were less than complimentary of Styles' performance or specifically his accent.
Responses to the clip were unkind, to say the least, with viewers flocking to Styles' rant while praising Book for being on-point with the scene.
AmAyeRong compared it to an "SNL skit", with Trevor Dove saying: "Whoever thought this was a clip to post should be fired honestly."
Atgika Godwin said: "Harry Styles looks too tried," Iztupidluv replied: "Too many accents, lack of commitment to an emotion - you can't be serious."