In one new sketch, Munn and Amurri channel Thelma & Louise, with Amurri tackling the Louise role originated by her mother, Susan Sarandon.
"It’s like the sequel to Thelma & Louise," Munn tells PEOPLE. "She’s got the blue bandana and we both wore the jean shorts. It’s awesome! It’s like, what happens after we drive off the cliff? We drive off a cliff and then open up into Avatar, and we’re in the movie, and then we get turned into avatars and we literally do shot-for-shot James Cameron’s trailer."
Amurri was game to go blue with Munn. "The full makeup is not a problem with her," Munn says. "Once we read the script and I told her what it was, and we watched the James Cameron trailer and we realized how awesome it would be to have Thelma and Louise as avatars, and there’s the whole uprising and everything, she was completely down."
In addition to Attack of the Show! and the Broken Lizard film The Slammin' Salmon, fans can see a different side of Munn when she takes on the traditional family sitcom on CBS' Accidentally On Purpose next year. "I did theater growing up," Munn says, "so a live audience is very exciting for me. Jenna Elfman’s character is having a baby so I’ll be the new nanny."