(CBS News)-- After coming under some scrutiny this past Decemberfor plagiarizing some of his short filmand allegedly plagiarizing his apology for such actions, Shia LaBeouf took to the open skies to say he's sorry.

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The 27-year-old "Nymphomaniac" actor tweeted a photo of wiriting in the sky on Jan. 1, 2014 that read, "I am sorry Daniel Clowes."

After debuting on the web on Dec. 16, 2013, LaBeouf'sshortfilm "Howard Cantour" was quickly found to bestrikingly similarto that of the comic Justin M. Damiano, written and created by Daniel Clowes. Both Howard Cantour and Justin M. Damiano begin with the main character narrating, using at times, the same lines of dialog. Back in December, LaBeouf claimed he wasn't copying the comic or any of Clowes' work, but was simply inspired by it.

"Copying isn't particularly creative work. Being inspired by someone else's idea to produce something new and different IS creative work," he tweeted. "In my excitement and naivete as an amateur filmmaker, I got lost in the creative process and neglected to follow proper accreditation."

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