Exclusive: Rebel Wilson of “Bridesmaids” has joined the cast of coming-of-age comedy “Struck by Lightning” opposite Chris Colfer and Allison Janney.Shooting began last week on the indie project, with Brian Dannelly directing from Colfer’s script. Supporting cast includes Christina Hendricks, Dermot Mulroney and Sarah Hyland. Story opens with Colfer’s character being struck and killed by a bolt of lightning and chronicles his exploits as he blackmails his fellow senior classmates into contributing to a literary magazine he’s publishing. David Permut is producing ”Lightning” alongside Rob Aguire and Mia Chang, while Colfer and his manager Glenn Rigberg will exec produce with Jason Michael Berman. Wilson is represented by WME and Andy Corren Management.