Hilary Duff axed from Bonnie and Clyde

Hilary Duff just learned a cold, hard lesson -- Hollywoods not hiring a lot of pregnant women to play legendary bank robbers ... which is why she just got dropped from The Story of Bonnie and Clyde.Duff was supposed to play Bonnie Parker in the upcoming film ... but sources involved in the production tell us theyre moving forward sans Hilary -- a decision that was made right after Hil broke her baby news last week.Were told the director is already shopping for a new Bonnie, and the split was amicable. As one source put it, Hilary won’t be available until next June. If we could wait we would.” Shooting is scheduled for this fall.If prego Duff isnt cool with the switch this could be another HunterTylo situation -- the actress who won a $4.8 million judgment when pregnancy cost her a Melrose Place role.Hilarys rep has not returned calls.Producers are also looking for a new Clyde due to scheduling conflicts with Kevin Zegers.