Joker turns into first R-rated movie to earn $1bn at world box establish of residing of job

Image copyright Warner Bros Image caption Joaquin Phoenix plays the title character in Joker Comic book film Joker passed the $1bn (£772m) mark in global ticket sales this weekend, becoming the first R-rated movie to do so.A US R rating requires everyone under the age of 17 watching the film in a cinema to be…