I actually know a tremendous amount about psychotherapy. To a great degree, Freudian theory has been discredited. As I posted elsewhere, psychotherapy generally compares well to nothing, but there is no real difference when compared to simple things like regular exercise and good nutrition.
As for Tom Cruise, there is some evidence supporting limited pharmacological intervention for the treatment of depression, so he was certainly wrong in speaking of Brooke Shields. And, although I am not a scientologist or a religous person at all, there is some evidence suggesting that a strong religous belief and active involvement in such activities relieves symptoms of depression and anxiety in most people. And if you look at the actual research, even that nonsense compares favorably with most types of talk based "psychodynamic" therapies. But that doesn't mean that Thetans or Allah are real or effective in treating depression.
Surprise, Suprise, Americans, to a great degree are sedentary, have lousy nutritioin, get very little exercise, engage in a great deal of passive entertainment (TV, etc), have unrealistic expectations of their marital relationship, and they feel lousy.