(Seth Rogen): Burt's best friend and a constant presence in the family's life.
: Encouraged by his artistic mother, Mitzi, Sammy begins making his own home movies using his father's 8mm camera. He recreates train crashes, directs his sisters in "monster" movies, and eventually makes more ambitious films for his Boy Scout troop. (Seth Rogen): Burt's best friend and a constant
(Paul Dano): Sammy's practical, scientist father who views filmmaking as a mere hobby. directs his sisters in "monster" movies