Just found this on vues site, after seeing the 1st two on tv i thought this was worth a shot, not sure of the reviews but i'll be giving it a go.
Big Momma's: Like Father, Like Son is the latest in the series of outrageous comedies about a cop going undercover in old lady's clothing. No stranger to going into the character of Big Momma, FBI agent Malcolm Turner (Martin Lawrence) now has to worry about his 17-year-old son Trent (Brandon T. Jackson), who has witnessed a murder. Dragging up along with his father, Trent enrolls in a girls' performing arts school while Malcolm becomes the house 'mother' for the girls. But can they find the murderer before he finds them? Nutty, knockabout comedy with a fashion angle!