News.com.au: Hollywood actor Leonardo DiCaprio says he rushed to release his upcoming climate change documentary Before the Flood ahead of November's US presidential elections to issue a clarion call to US voters in time to influence their decisions. "We wanted this film to come out before the next election because ... the United States is the largest contributor to this issue," DiCaprio said to the audience after the film's world premiere at the Toronto International Film Festival on Friday. "We cannot afford,...