TORONTO ? A coalition of tobacco-control advocates is calling on the Ontario Film Review Board to toughen its rating for films that contain smoking-related scenes to keep young people from taking up the addictive habit.

The group wants the OFRB to designate any new movie that contains tobacco use as 18A, which would require anyone under age 18 to be accompanied by an adult. In the Maritimes and Manitoba, an 18A rating also means children under 14 are prohibited from viewing the film.

?In Ontario, 90% of the top-grossing movies are all rated for children and teens,? said Lorraine Fry, executive director of the Non-Smokers? Rights Association.

Movies now in theatres that contain smoking include Paddington (OFRB-rated G ? suitable for all ages), The Imitation Game (PG ? parental guidance), Taken 3 and Mortdecai (both 14A ? suitable for age 14 and up).

?This is one of the last forms of media where tobacco use can actually be shown to kids,? said Fry, noting Canada has banned tobacco advertising and promotion.