NHL hockey player Georges Laraque went Green last week.
A Green party official said he would not be announcing plans Saturday to run for the party in an election, but would be discussing other ways he will contribute.
The party announced the Laraque event in a statement today.
The statement said Laraque will hold a public screening of the film Earthlings, and then make an announcement.
Laraque has already credited that film, which is about the exploitation of animals, for spurring him on in his public fight against puppy mills.
The 13-year NHL veteran has also become a vegan, meaning he eats no meat or other products derived from animals, like milk and cheese.