I'm glad it's out and that I taped it in the early 1980s. It's a definite G and post-toddler kids will like it. However, those adults unfamiliar with the Great Brain character may get bored at the juvenile story.
On the plus side, the sets of early, rural Utah are pretty well done and the cast, if inexperienced, is at least earnest. Also, this is a rare film that is almost completely faithful to a book. Fans of The Great Brain will enjoy seeing what they read faithfully adapted to the screen. Examples include The Great Brain, Tom D. Fitzgerald, having adventures with a Greek immigrant family, his fights with friends, his scheming with brothers, including narrator John D. Fitzgerald, and his change of heart when he helps a young crippled boy.
This is an almost impossible film to locate. It never runs on TV it seems and has never been released to video or DVD. Rumor has it the film is locked in litigation. That's a shame if true, because it seems ideal for a new production or a re-release via DVD to at least the Utah/Mormon market.
Still, if you love the John D. Fitzgerald, you'll want to hunt old family tapes off TV to see if you have this in the basement. The film was directed by Sidney Levin. It also starred Pat Delaney, Fran Ryan and Cliff Osmond.