The stars ironically list a whole list of reasons not to vote, in order to show how important it is.
The US presidential election takes place next month, but one in four Americans still are not registered to vote.
A spokesman for Google said: "We're trying to help increase participation by making sure voters have easy access to voting information."
The company has created a voter info map which collates registration, absentee and early voting information.
LONDON - Hollywood stars, including Leonardo DiCaprio and Dustin Hoffman, appear in a new online film, produced by Google, encouraging US citizens to register to vote.