Anna FarisandChris Pratt‘s son Jack had one special Halloween with mom and dad — and their new significant others!
Pratt, 39, and Faris, 41, hit the streets on Halloween night to trick-or-treat around their neighborhood in Los Angeles with 5-year-old Jack, a source tells PEOPLE.
The exes also brought along their new partners to join in on the family fun, with Pratt sticking close to girlfriendKatherine Schwarzenegger, 28, and Faris seen holding hands with her cinematographer boyfriend Michael Barrett, 48.
“Along with Katherine and Michael, they all took Jack trick-or-treating in Pacific Palisades,” the source adds. “It seems they all get along really well. Everyone had a good time. They were making an effort to make sure Jack had a great Halloween.”
Chris Pratt, Katherine Schwarzenegger, Anna Faris, Michael Barrett.Getty (3); Splash News

The happy group wereseen smiling and laughing all togetheras they all walked around in costume. Jack was covered head-to-toe in a ninja costume, while Pratt and Schwarzenegger matched as Vikings. Barrett seemed to be dressed as Daenarys fromGame of Throneswhile Faris looked like a modern-day Snow White. Jack and Schwarzenegger also carried matching bright orange pumpkins to collect their candy during the fun outing.
WATCH: Anna Faris Reveals How She &Chris PrattAre Co-Parenting Their Son: ‘We Surround Jack with Love’
Pratt and Faris, who were married for eight years, first announced they were splitting on August 6, 2017 witha joint statementon Facebook. “Anna and I are sad to announce we are legally separating,” the statement said. “We tried hard for a long time, and we’re really disappointed.”
Faris was linked to Barrett in Sept. 2017 while Pratt and Schwarzenegger were first spotted together on Father’s Day earlier this year.
source: people.com