Prehistoric caveman or action hero? As our own Jenni Miller recently posted, David Fincher is in talks to direct The Social Network (AKA "The Facebook Movie"). Naturally enough, speculation has begun on who could play Facebook founder Mark Zuckerberg. CNET News was told by "an entertainment industry source" that Michael Cera and Shia LaBeouf are among the top choices.

But they're on the top of the list for just about any movie featuring a 20-something lead, aren't they? Would either one be suited for the role? The red hot LaBeouf would seem the more logical choice ... except that he's already set for Money Never Sleeps (AKA Wall Street 2) and has The Associate (based on John Grisham's latest best seller) in development. One's about the financial industry, the other takes place in the legal system; a third movie set in the business world in the next couple of years might prematurely age his star.

Cera might be the better choice. Even though Year One flopped, he was the second banana and doesn't seem to have suffered from the box office fallout. The upcoming Youth in Revolt and Scott Pilgrim vs. the World could cement his appeal, setting him up for a dramatic turn with a very talented director. I'm curious to see if he can expand beyond his usual shtick; at the same time, his comic chops could come in handy, depending on Aaron Sorkin's script.

Would you rather see Michael Cera or Shia LaBeouf as Facebook founder Mark Zuckerberg? If not them, then who?

[via The Playlist]

Harold Ramis is the comedy writer and director everyone's cribbed from, from Sandler to Apatow. After leaving "Second City TV," Ramis went on to write, direct, and occasionally star in comedic touchstones like Animal House, Caddyshack, Stripes, Groundhog Day, and of course, Ghostbusters, which have starred a slew of loveable losers fighting to get their sh*t together in the army, on the golf course, or in the middle of a war with supernatural beings. After taking a few years off, Ramis is taking it back to the beginning with this summer's Year One, which stars Jack Black and Michael Cera as loveable loser cavemen who, when Black's Zed accidentally burns down the village, find themselves in the middle of a very familiar holy war. Read on and find out what the big daddy of buddy movies had to say about evolution and self-improvement, male full frontal nudity and the lack thereof, and what the heck is up with Ghostbusters 3.

Year One opens nationwide this Friday, June 19th.

Cinematical: How much more stressful is it to deal with marketing a summer blockbuster and competing with the other movies that are out?

Harold Ramis: You know, it's the same level of stress every time you make a movie, because you've pinned all your hopes and dreams on it and you've fantasized what success will be like, but at the time you can't escape fantasizing what failure will be like. [laughs]

I conceived this movie on a big scale, to do a Biblical epic comedy. I knew it was ambitious and when the studio said "Yes, we'll do it," and it became real, I thought, "Oh my God!" [laughs] It's one thing to fail small, but to make a big movie that doesn't work is so risky.