Fiore Films - the production outfit behind the in-the-works John Gotti biopic for director Barry Levinson - is getting further into the Gotti business. Sources say the company is developing a reality TV series based on the lives of Gotti’s grandchildren, with Radar Pictures and Compelling Entertainment. The Gotti grandkids - John, Carmine and Frank Agnello, sons of Victoria Gott - were featured in A&E’s “Growing Up Gotti.” After delays, the feature “Gotti: In the Shadow of My Father,” is to shoot this fall, sources say. The script is by James Toback. John Travolta and Al Pacino are starring, and Lindsay Lohan has been rumored to be in the mix.