Watch The Dadchelor Full Movie Free Online 123Movies. The Dadchelor, from creators Jon Karthaus and Daan van den Nouweland, is a comedy film that tells the story of uber-responsible Mark, who is about to become a father and goes on a seemingly innocent Dadchelor weekend, that spirals out of control and even puts the life of his friends on the line. It is produced by Johnnywood and NRG Productions.