At this point, it's clear that Sean Penn has had a big influence on his son's life, so it's definitely worth mentioning that he was the one who also chose Hopper Penn's interesting name. Of course, odd baby names are nothing new for celebrities, having been a trend for years, basically since Apple Paltrow was born. Yet, there is a reason that Hopper has his specific name. He explained to Interview, "It has to do with Dennis Hopper; my dad was friendly with him and idolized him."

Hopper isn't just named after one famous actor, but two, since he got his middle name, Jack, from, you guessed it ... Jack Nicholson. Sean downplayed the claim that he named his son after Dennis Hopper and Jack Nicholson though, telling New York that he and Robin Wright had "aesthetically" liked the names. He did admit that he was influenced by the actors, considering how important Hopper's movie "Easy Rider" was to him. He also pointed out that Nicholson is someone who every actor admires.

While Hopper Jack is definitely an original name, the "Devil's Peak" star said that he almost had an even stranger name because his father actually had another idea. "My dad wanted to name me Steak, the food, because he loves it so much." Wright unsurprisingly vetoed that name, with Hopper adding, "What they told me is that I hopped in her stomach ... so they went with that."