Earlier this year (10) Amanda White, a producer on Affleck's I'm Still Here, filed a $2 million (£1.3 million) sexual harassment lawsuit against the star, alleging she endured "uninvited and unwelcome sexual advances in the workplace" while making the movie.
Cinematographer Magdalena Gorka filed a separate sexual harassment lawsuit against Affleck, seeking $2.25 million (£1.46 million) in damages.
The deadline in the case was postponed in August (10) as the parties met for mediation, which has resulted in a settlement.
A statement from Affleck's legal team reads, "The disputes between Flemmy Productions, LLC and Casey Affleck with Amanda White and Magdalena Gorka in connection with the film 'I'm Still Here' have been resolved to the mutual satisfaction of the parties and the lawsuits are being dismissed."
The Associated Press reports the two women will now receive a credit on the film, but no details of any financial agreements have been released.
Amanda White, a producer on Affleck's upcoming documentary I'm Still Here, has filed a $2 million (£1.3 million) sexual harassment lawsuit against the star, alleging she endured "uninvited and unwelcome sexual advances in the workplace" while making the movie.
On Monday (09Aug10), White was due to submit her opposition brief to a request Affleck's lawyers made last month (Jul10) to move the case away from the court system and into arbitration.
But the deadline has now been pushed back until 9 September (10), according to Reuters.
No reason was given for the postponement but the decision has sparked speculation both parties are discussing a settlement.
The new deadline falls just one day ahead of the U.S. release of the documentary, which follows actor Joaquin Phoenix's attempts to launch a rap career.
A second woman involved in the production, cinematographer Magdalena Gorka, has also filed a separate sexual harassment lawsuit against Affleck. His attorney has denied all allegations of bad behaviour.
The Hollywood actor is facing legal action from producer Amanda White and cinematographer Magdalena Gorka, who have filed separate suits alleging Affleck behaved badly while they were making his I'm Still Here documentary about Joaquin Phoenix.
Affleck's lawyer Marty Singer has branded both lawsuits "total fiction" and will file papers in court on Wednesday (04Aug10) claiming both women breached contracts by alerting the media to their complaints.
He tells the New York Post, "Their lawyer sent the media both lawsuits before he filed them with the court in order to get publicity. Both claims are total fiction."
Meanwhile, associate producer Nicole Acacio, who also worked on the Pheonix film, has defended Affleck - insisting she never witnessed him act inappropriately to any of the women on set.
She says, "Casey's wife and his children were in town with him. Casey is a great guy, and it's clear that he's a very warm, family-centric person. The real Casey isn't the one who was described in these suits. Nothing I've ever witnessed would lead me to think he could ever do anything like that."
An unnamed female editor on the documentary adds, "These lawsuits are contrary to everything that I personally know about Casey."
A lawyer for both Gorka and White, Brian Procel, says, "This is clearly an intimidation tactic by Casey Affleck's team. They want to keep the truth from the public. We do not consider this as a serious challenge and we will fight it."
The Hollywood star has been hit with a second lawsuit in as many weeks relating to his time working on his documentary I'm Still Here, which follows his brother-in-law Joaquin Phoenix's attempts to launch a rap career.
Cinematographer Magdalena Gorka filed suit on Friday (30Jul10) alleging Affleck's brother climbed into bed with her and groped her while she slept during a stay at Phoenix's New York apartment.
She also claims she was subjected to a hostile work environment and was left out of pocket and stripped of her production credit after she finally quit the project.
But a representative for Affleck has slammed Gorka's claims, telling TMZ.com, "(It's) absolute fiction. (It's) fishy... (Gorka) hasn't worked for the movie since April 2009... it's interesting that she hasn't filed until now."
The spokesperson also alleges it was Gorka who behaved badly during filming, adding, "Several crew members have told us she was inappropriate on set."
Gorka's lawsuit was filed just a week after Affleck was sued for $2 million (£1.3 million) by producer Amanda White, who claims the actor sexually harassed her during filming of the documentary.
Cinematographer Magdalena Gorka filed a $2.25 million (£1.5 million) lawsuit in Los Angeles Superior Court on Friday (30Jul10), alleging Ben Affleck's brother harassed her during work on his documentary I'm Still Here, which follows Joaquin Phoenix's attempts to launch a rap career.
Gorka claims she was forced to leave the project without proper pay or a production credit after Affleck "crawled" into her bed at Phoenix's New York apartment, where they were staying during the shoot in December (09).
The legal papers, obtained by The Hollywood Reporter, state, "During the middle of the night, (Gorka) awoke to find Affleck lying in the bed next to her. Unbeknownst to (Gorka), Affleck had entered the bedroom while she was asleep and crawled into the bed. When she woke up, Affleck was curled up next to her in the bed wearing only his underwear and a t-shirt. He had his arm around her, was caressing her back, his face was within inches of hers and his breath reeked of alcohol."
Gorka alleges she ordered the film star out of her bed and confronted him the morning after the incident before flying to Los Angeles and subsequently leaving the documentary.
She later rejoined the project after another female worker was employed - but she claims the shoot with Affleck was still problematic.
The documents state, "(Gorka) was berated and verbally attacked by Affleck after she refused his sexual advances in New York, and was criticised constantly for refusing to be submissive in response to his rants and derisive comments."
Gorka then left the shoot altogether but claims she has been left out of pocket and been stripped of her Director of Photography credit.
Commenting on the lawsuit, Gorka's lawyer Brian Procel says, "In her 16 years of working in the entertainment industry she has never accused anyone of sexual harassment. Ms. Gorka knows there will be repercussions, and that she will be exposed to attacks mounted by Affleck's high-paid publicists and 'bulldog' attorneys. She ultimately decided that the truth needs to come out. We look forward to our day in court."
The lawsuit comes a week after Affleck was sued for $2 million (£1.3 million) by producer Amanda White, who claims he sexually harassed her during the filming of the same documentary.