Rachel McAdams, who played Regina George in Mean Girls, didn't participate in the Walmart ad reunion because she wasn't excited about doing a commercial. Although a Mean Girls film with the original cast isn't in the works, a musical adaptation will be released on January 12, featuring a new cast and some returning actors. McAdams expressed her support for the Mean Girls musical and was open to making a cameo appearance but couldn't make it work. She looks forward to seeing the final product.

Audiences were treated to a Mean Girls reunion last month when Lindsay Lohan, Amanda Seyfried, Lacey Chabert, Rajiv Surenda, and Daniel Franzese joined forces for a Black Friday Walmart ad. As exciting as seeing the group back on screen as their iconic film characters was for fans of the film, there was one notable absentee: Where was Queen of the Plastics Regina George? Rachel McAdams, who famously portrayed Regina in the 2004 film,...