Kariym Joachim, who has Treacher Collins Syndrome, attends an event featuring Jacob Tremblay, star of the movie "Wonder" at Toronto's Sick Kids Hospital, in Toronto on Monday November 20, 2017. Vancouver child actor Jacob Tremblay was in Toronto on Monday for a special screening of his new film "Wonder" about a child with facial deformities -- sharing it with a group of young patients who live that reality every day and helped him prepare for his role. The 11-year-old plays Auggie Pullman, a child with Treacher Collins syndrome, a rare congenital condition in which babies are born with underdeveloped facial bones and often little or no external ears. THE CANADIAN PRESS/Chris Young