The movie will air in the fall.
The affair has already played a big role in Parts 1 and 2 of the reunion.
Tonights episode of the reunion is dubbed Secrets Revealed.
Never-before-seen moments from the summer will shed a new light on glaring secrets that have since been revealed.
Buying Back My Daughteris produced by Front Street Pictures and Charles Cooper for distribution by Lifetime.
Executive producers are Good, Orly Adelson and Allen Lewis with James Jope as co-executive producer.
Troy Scott directs from a script written by Barbara Marshall.
