Ben Affleck and Matt Damon were spotted working on the set of the upcoming Nike movie in Santa Monica on Friday.

The 49-year-old actor was spotted sitting behind the camera and working with the film crew while his 51-year-old co-star changed several costumes.

The lifelong friends were also spotted having a nice chat during a brief break from filming.

And action! Ben Affleck and Matt Damon were spotted working on the set of the upcoming Nike movie in Santa Monica on Friday.

Affleck kept it relatively casual in a flannel shirt, black pants and two-tone Converse sneakers as he directed his longtime friend.

Damon originally tucked a striped button-up shirt into loose-fitting khaki pants for some on-camera time.

The actor later removed his outer clothing and wore only a white tank top for another scene.

Character: The 49-year-old performer was spotted sitting behind the camera and working with the film crew while his 51-year-old co-star changed into several costumes.

Character: The 49-year-old performer was spotted sitting behind the camera and working with the film crew while his 51-year-old co-star changed into several costumes.

Costume Change: Damon originally tucked a striped button-up shirt into loose-fitting khaki pants for some on-camera time.  The actor later removed his outer clothing and wore only a white tank top for another scene

Costume Change: Damon originally tucked a striped button-up shirt into loose-fitting khaki pants for some on-camera time. The actor later removed his outer clothing and wore only a white tank top for another scene

Another one: The star of the Jason Bourne franchise finally changed into a white and red polo shirt that went well with the light tones of his pants

Another one: The star of the Jason Bourne franchise finally changed into a white and red polo shirt that went well with the light tones of his pants

In the end, the star of the Jason Bourne franchise changed into a white and red polo shirt that went well with the light tones of his pants.

Feature development was initially revealed The Hollywood Reporter last April.

The publication noted that the director of the upcoming film will be Affleck.

Inception: The development of this feature was originally reported by The Hollywood Reporter last April

Inception: The development of this feature was originally reported by The Hollywood Reporter last April

Doing his thing: The media noted that Affleck will direct the upcoming film

Doing his thing: The media noted that Affleck will direct the upcoming film

Best friends: The frequent collaborators stayed close between takes, with Damon smiling widely at the crew

Best friends: The frequent collaborators stayed close between takes, with Damon smiling widely at the crew

Vintage: Damon wore a burgundy Nike bag during filming

Vintage: Damon wore a burgundy Nike bag during filming

It was also noted that the old friends will co-write the script, shoot and produce the film.

The film will mark the first time the Gone Girl star will direct his frequent collaborator.

Damon is currently set to play former Nike executive Sonny Vaccaro, while Affleck is set to play company co-founder Phil Knight.

Doing it All: The longtime friends wrote, starred in, and produced the film

Doing it All: The longtime friends wrote, starred in, and produced the film

Testing the Waters: The upcoming film will mark the first time Affleck will direct a feature film with his frequent collaborator

Testing the Waters: The upcoming film will mark the first time Affleck will direct a feature film with his frequent collaborator

Starring: Damon is currently set to play former Nike executive Sonny Vaccaro, while Affleck is set to play company co-founder Phil Knight.

Starring: Damon is currently set to play former Nike executive Sonny Vaccaro, while Affleck is set to play company co-founder Phil Knight.

Here they are: Affleck, Damon and a few crew members worked on a scene in front of the sportswear company's logo

Here they are: Affleck, Damon and a few crew members worked on a scene in front of the sportswear company’s logo

Focus: The star of the movie

Focus: ‘Gone Girl’ star at home in director’s chair

The film will follow how they attempt to sign Michael Jordan with an endorsement deal that will eventually propel the company to the top of the sportswear industry.

The publication noted that the basketball legend will never appear in the film.

Other cast members include Jason Bateman, Viola Davis and Chris Tucker.

Plot: The film follows Vaccaro and Knight as they attempt to land Michael Jordan an endorsement deal that will eventually propel the company to the top of the sportswear industry

Plot: The film follows Vaccaro and Knight as they attempt to land Michael Jordan an endorsement deal that will eventually propel the company to the top of the sportswear industry

Gone: The basketball legend will never appear in the movie, according to media reports

Gone: The basketball legend will never appear in the movie, according to media reports

Talented cast: Other cast members include Jason Bateman, Viola Davis and Chris Tucker

Talented cast: Other cast members include Jason Bateman, Viola Davis and Chris Tucker

From humble beginnings: The script for the project was originally called Air Jordan and was written by Alex Convery

From humble beginnings: The script for the project was originally called Air Jordan and was written by Alex Convery

Rewrite : This was later picked up by Affleck and Damon, who subsequently rewrote the script

Rewrite : This was later picked up by Affleck and Damon, who subsequently rewrote the script

Hilarious: The Good Will Hunting cast seemed to be making the most of their time together

Hilarious: The Good Will Hunting cast seemed to be making the most of their time together

The script was originally titled Air Jordan and was written by Alex Convery.

It was later picked up by Affleck and Damon, who subsequently rewrote the script.

The release date of the untitled film has not yet been announced to the public.

Beaming: Affleck flashed a big smile while talking to Damon

Beaming: Affleck flashed a big smile while talking to Damon

Upcoming: The untitled film's release date has yet to be announced to the public

Upcoming: The untitled film’s release date has yet to be announced to the public

https://www.dailymail.co.uk/tvshowbiz/article-10997319/Ben-Affleck-directs-longtime-pal-Matt-Damon-set-upcoming-untitled-Nike-movie.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

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