Shia LaBeouf and Lena Dunham have been arguing about his skywriting apology.
The Transformers star employed a team to write a five-mile wide message in the sky above Los Angeles on New Year's Day reading "I AM SORRY DANIEL CLOWES," in an attempt to make peace for plagiarising the comic book writer's work, Justin M Damiano in his short film HowardCantour.com.
However, 'Girls' star Lena was less than impressed, writing on her Twitter page: "I've always felt, utterly and unchangeably, that only sociopaths hire skywriters."
Shia retweeted the comment and added his own view, saying: "I don't mind creating debate with thoroughly considered artistic expressions but I don't want to offend with a tweet. Sorry world."
Lena, 27, realised Shia, also 27, was quoting her own character from Girls, Hannah Horvath, back at her, so referred back to his Disney character, Louis Stevens - who he played in Even Stevens between1999 and 2003 - in her reply.