Here's what www.netflix.com says:
2000 PG-13 88 minutes
Barry Williams shows what it was like to grow up in front of America's eyes as Greg in the popular 1970s series "The Brady Bunch" in this made-for-TV movie based on Williams's memoirs. Adam Brody plays a young Williams who hooks up with co-star Maureen McCormick (Kaley Cuoco), lands a date with his on-screen mom, Florence Henderson (Rebeccah Bush), and deals with strife between the actors and creators.
This is more like a documentary than a movie. Barry Williams shows you what it was like to be a Brady. From the fights to the romances. It was pretty revealing. I enjoyed it!