Michael Bay had Megan Fox wash his Ferrari during her audition for Transformers.

The role in the 2007 movie, which spawned a recent sequel, launched the actress to superstardom. But you can't say she didn't work hard to get the part.

Film critic Jason Solomons has revealed that Transformers director Michael Bay filmed Fox go through the unusual audition process.

He said, "He made her wash his Ferrari while he filmed her.

"She said she didn't know what had happened to that footage. When I put it to Bay himself, he looked suitably abashed - 'Er, I don't know where it is either.'"

It's no wonder then that Fox recently took a verbal swipe at the director, saying Transformers: Revenge of the Fallen was "not a movie about acting".

It's a movie about washing cars obviously.