Big Mommas: Like Father, Like Son (2011)

When an investigation leads FBI Agent Malcolm Turner to a dangerous criminal network, he must go undercover once again. To infiltrate a prestigious private school, Turner adopts the persona of Big Momma, his iconic alter ego. Complicating matters, his teenage son is enlisted to assist, taking on the role of Big Momma's overweight niece. Together, the unlikely duo have to undercover their identities while unraveling the intricate criminal enterprise.