Talkbackers 1 and Talkbackers 2 are both directed by Kevin Smith and are both almost exactly ten hours long..

Talkbackers 3 is directed by Lars Van Tiers and is about thirteen hours long...

Talkbackers 4 is directed almost exclusively by Zack Snyder and has two versions by Zack, one that is fourteen hours long and the other next that is seventeen hours long.. it's Zack's "Trainspotting 2".. the version which I still think should be credited as co-directed by Hanno Ridal Raudsepp and Danny Boyle...