"Not a very good movie, but it has some sincerely positive ideas."

I Can Do Bad All by Myself is Tyler Perry's eighth film in 4 1/2 years, adapted from another one of his many, many stage plays. Archeologists are constantly discovering new Tyler Perry stage plays waiting for their big-screen adaptations. Hollywood could do nothing but adapt Tyler Perry stage plays for the next 20 years and still stay in business.

This latest is more of the usual Perry formula, in which…