FREAKY FRIDAY is a studio's nightmare. The sucess of the movie rides completely on the strength of the two main performances. The script and direction mean nothing if those two actors aren't cast perfectly. Lucky for us, they were. Jamie Lee Curtis and Lindsey Lohan are perfect in this movie, believable and very funny.
Also, there's little objectionable material. There is no language, only some crude terms like "sucks" and one use of "h*ll" ("makeover from h*ll"). There are some mild, harmless innuendos that will go over kids' heads, like when Mark Harmon's character causes Curtis to trip over a couch, and her dad says "save it for the honeymoon". No violence, drugs, or negative role models. Quite the contrary, actually. While both mother and daughter act immaturely to begin with, they each act out of love towards the end.