Nicolas Cage named his three year-old sun Kal-El after Superman, and he's passed his love of comics on to his son!
During a visit to the set of The Sorcerer's Apprentice, Nicolas, 45, began playing "The Incredible Hulk" with his little son, a source tells OK!.
The actor began saying to Kal-El, "Exposed to a blast of gamma rays, he becomes ... THE HULK!" while father and son growled and roared and mimed transforming into the raging superhuman green giant together.
"It was really adorable," says the onlooker.