It's been a while since Liev Schreiber had any lessons of his own, but it's just like riding a bike!
Little Sammy was along for the ride, running in front of his big bro at first, then racing to keep up as the bicycle got going.
Mom Naomi Watts couldn't be there- she was too busy prepping for the Golden Globes- but Dad had matters well in hand!
Ch-ch-check out the pics (below) to see the scene straight out of a Norman Rockwell painting- except that ol' Norm never painted movie stars!
Way to go, Liev! And we mean go! Hurry up! He's getting away!
[Image via WENN.]