The comedian and Trainwreck star was attached to appear in the famous toy's live-action debut - but has now pulled out, saying she's just too darn busy.
"Sadly, I'm no longer able to commit to Barbie due to scheduling conflicts," the actress told Variety.
"I'm bummed, but look forward to seeing Barbie on the big screen." No replacement has been announced for the film, which is due out next summer.