The famous friendly exes attended a party along with their children

By Drew Mackie
Updated May 26, 2015 01:45 AM
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Once again, Gwyneth Paltrow and Chris Martin have proven that divorce notwithstanding, holidays mean family time.

The pair attended producer Joel Silver’s annual Memorial Day bash in Malibu on Monday. Also in attendance were their children, Apple, 11, and Moses, 9.

“Gwyneth and Chris arrived separately,” a source tells PEOPLE. “At the party, they were friendly, hung out with their kids and also mingled. Guests were treated to a barbecue and all seemed to enjoy the party.”

It’s not the first holiday that Paltrow, 42, and Martin, 38, have spent together since finalizing their divorce in April; they spent Mother’s Day together as well.

Since "consciously uncoupling" in March 2014, Paltrow and Martin have made an effort to remain amicable, even while they pursue new romances.

Paltrow attended the premiere of her mother’s new movie with producer Brad Falchuck, while Martin has been spending time with Jennifer Lawrence, who was spotted in New York City over the long weekend.

Other celebrities who attended Silver’s Memorial Day party included Kate Hudson, Courteney Cox and fiancé Johnny McDaid, Tobey Maguire and Jennifer Meyer, Minnie Driver, Kate Beckinsale, Diane Kruger, January Jones and Bella Thorne.

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On Sunday, Paltrow hosted a birthday party for her friend Amanda de Cadenet. Among the guests at the Oscar winner’s L.A. home were Demi Moore, Rosie Huntington-Whiteley and Amber Valletta.