Updated September 12, 2019: Warner Bros.'s Joker is tracking for a $90 million domestic opening weekend, according to Deadline. This would surpass October 2018's Venom ($80.2m), the current record-holder for highest grossing domestic opening weekend in October.
At an even $90m, Joker would rank as the 6th-largest R-rated film opening in North America, behind Deadpool ($132.4m), Deadpool 2 ($125.5m), It ($123.4m), The Matrix Reloaded ($91.7m), and the recent It: Chapter Two ($91m).
Original Story from August 9, 2019: One of the first box office predictions for October's Joker directed by Todd Phillips and starring Joaquin Phoenix has surfaced and according to boxoffice.com's estimates they expect the film to open to $77m on the domestic side on its way to a $175m total.
If accurate those figures would best the critically-lauded Shazam!'s $54m/$140m from earlier this year.
In the positive category the analysts cite Joker's iconic status, the recent success of more adult-skewing R-rated superhero films like Logan and Deadpool and positive trailer and social media trends among other factors working in its favor.
On the con side Boxoffice sees telling his origin may take away from the character's appeal, the lack of a family audience and the question of whether it's too soon after Jared Leto's debut as the Joker in 2016's Suicide Squad.
Joker opens October 4.