Ryan Reynolds has been out and about promoting his new movie, “The Proposal” (which is fabulous, by the way, but I snuck into the theater and only saw the last hour, so I’ll see the whole movie and post a review this weekend). On David Letterman the other night, Reynolds talked about being married to Scarlett Johansson and his beekeeping hobby. Yes, bees.

Chic, independent and cosmopolitan. That’s what Scarlett Johansson needed to score a cool modeling gig with Mango Clothes. Guess she’s got that all that in droves!

Here’s a fun little video from CelebTV about the starlet’s new gig for pal Penelope Cruz’s Mango Clothing 2009. You can catch Johansson next in "Iron Man 2," playing Natasha Romanoff/Black Widow opposite Robert Downey, Jr. It’s due in theaters May 7, 2010. Nice way to kick off the summer movie season next year.

Amazing the things you learn on Twitter. I’ve been following director Jon Favreau’s updates (follow him yourself at http://twitter.com/jon_favreau), and he posted today that this was Scarlett Johansson’s first day on the "Iron Man 2" set in her Black Widow outfit. "You’ve never heard a crew get so quiet so fast," tweets Favreau.

Johansson plays Natasha Romanoff in the "Iron Man" sequel, but this is the first confirmation that she would indeed appear as Black Widow in costume, as well.

Favreau also confirmed that Samuel L. Jackson would appear in the film as Nick Fury. We knew that, but there was speculation that he might show up as a cameo, like he did at the end of "Iron Man." But it sounds like he’ll definitely return as the S.H.I.E.L.D. director. Or at least, that’s what Favreau says in this tweet: "Now shooting first scene with Tony Stark and Nick Fury."

Anyone else following Favreau’s Twitter updates? Get on board! You, too, can be one of his 66,457 followers!

Image: Bauer-Griffin

Casting for "Iron Man 2" continues, with Kate Mara and Clark Gregg being the most recent actors to join the sequel. It’s directed by Jon Favreau, who also helmed the first movie.

I’ve been a big fan of Mara’s for a while, and especially loved her role in "Shooter," opposite Mark Wahlberg. Her character in "Iron Man 2" is being kept under wraps for now (anyone heard anything?). Scarlett Johansson is playing Black Widow, and Gwyneth Paltrow is returning as Pepper Pots.

Gregg is reprising his role as Agent Phil Coulson of S.H.I.E.L.D. I’m guessing he might play a major role in "The Avengers," as well. That movie is coming up in 2012.

"Iron Man 2" is scheduled for release on May 7, 2010, and it can’t get here fast enough for me. I need more of Robert Downey, Jr. as the dashing Tony Stark, and it’ll be a blast seeing Mickey Rourke as Ivan/Whiplash. I’m sure those two have plenty to talk about on set, since both have battled demons and had major comebacks in recent years.

Image Credit: Shooter, © Paramount Pictures; Source: Hollywood Reporter

Jennifer Aniston is in theaters right now in “He’s Just Not That Into You.” The actress spoke with Julie Chen of CBS News about her own dating perils: