Former costars Sandra Bullock and Melissa McCarthy dressed in costume as bearded fishermen while trick-or-treating with their kids on Oct. 31 Credit: London Entertainment /Splash

Gone fishing! Sandra Bullock and Melissa McCarthy went incognito while trick-or-treating with their kids on Thursday, Oct. 31, donning matching bearded fishermen costumes for Halloween.

With their gray scraggly beards, yellow rain jackets, and hats, the Heat costars were almost unrecognizable. They were accompanied by Bullock's 3-year-old son Louis, adorable as always in a black-and-white skeleton costume, as well as McCarthy's family, including husband Ben Falcone, with whom she has two daughters, Vivian, 5, and Georgette, 3.

The 43-year-old Bridesmaids actress and the 49-year-old Gravity star first bonded while filming the buddy cop comedy The Heat last year. Speaking about their relationship with Us Weekly this past summer, McCarthy said she had a blast with Bullock. 

"I thoroughly enjoyed saying awful things to Sandy," she quipped. "We get along so well, it felt okay!"

Don't expect a repeat performance, though. Bullock pretty much squashed any hopes of a sequel to the hit comedy in an interview with Entertainment Weekly.

"I know they say never say never, but right now, I can't imagine it," she said. "I don't want to ruin what Melissa and I had. If a miracle happens where [a script] shows up that really and truly outdid the first and provided an experience that was better than the first one, then I would look at it. But I'm not there."