Mila Kunis may have joined the cast of 'Family Guy' because of a contract mistake.
The 'Black Swan' actress, who lends voice to the animated series' 'Meg Griffin', was cast because of a glitch in the contract previously made with 'Lacey Chabert, the Huffington Post reported.
Chabert reportedly wasn't under contract for the entire series run and chose to leave after the first season.
However, rumours were rife that Chabert had a falling out with the show, which wasn't the case as the 'Mean Girls' star cleared it out during an interview.
