Melissa McCarthy channels her comedic star power into _Tammy_, the upcoming Warner Bros summer comedy about a woman (McCarthy) pushed over the edge when she’s fired from her fast food job,

finds her husband cheating, and becomes a fugitive on the run with her grandma (Susan Sarandon) bound for Niagara Falls. The July 2 pic will test McCarthy’s comedy reign that started with

_Bridesmaids _and continued with last year’s _Identity Thief_ and _The Heat_, and also marks her first foray into feature scripting alongside husband Ben Falcone, who co-wrote and directs in

his helming debut. Check out the first trailer: [embedded content]