We're not sure if this is part of a scene from The Avenger or if Mark Ruffalo's fist-pumping because he's excited about Robert Downey, Jr.'s wife being pregnant!

The cast of of the Marvel film is going full-force in NYC's Central Park, shooting the upcoming superhero film due out May 4, 2012.

Click thru to see a teaser trailer for the film ...

Producer Susan Downey, wife of Robert Downey Jr., is pregnant, her rep confirms to X17online!

Susan, 37, and Robert, 46, have been married for six years. They met on the set of the movie Gothika. The pair confirmed Wednesday that their first child together would be born early next year.

Downey Jr., 46, has a son Indio, 17, with ex-wife Deborah Falconer.

The actor said last year that he was hoping to have a child with Susan soon -- and that he wants a girl!

Congrats to the happy couple!

Robert Downey Jr. and his wife Susan were spotted shopping on Monday evening, and the box office superstar flashed X17 photogs his sexy smile before driving off in his Bentley.

RDJ is currently filming the yet-to-be-titled Sherlock Holmes sequel, and before we get to see him slip into his Iron Man suit for the Avengers movie in 2012, he's reportedly set to star in How To Talk To Girls, which is based off of child author Alec Greven's book of the same title. Click after the jump to see the hilarious YouTube video of Alec promoting his book -- he was just 9 years old when he penned the piece on wooing the ladies!

If only these two had been BFFs! Robert Downey Jr. is hitting the talk show circuit to promote Due Date and last night David Letterman asked him about Charlie Sheen. "We were in high school together," said RDJ. "We didn’t really hang out. I mean, it sounds like we could have really partied."

And does Downey have any words of wisdom for the fellow actor? "He's a grown man, what am I gonna say? The only advice I would give him is, you know, don't get arrested."

Watch the vid above!

Last night Jude Law, Robert Downey Jr. and Guy Ritchie attended the UFC Ultimate Fight Night at the O2 Arena in London, and the Sherlock Holmes crew looked like they were having a blast. Hey, there's nothing more exciting than watching a couple of shirtless men clobber each other!

The boys are back in the UK to shoot the Sherlock Holmes sequel, which will be released in December of 2011. Can't wait for that!

But why did the Iron Man lose his cool?

Robert Downey, Jr. is probably what you'd still call "in recovery," which makes this episode all the more strange and random...

We caught up with the brilliant actor last night outside Nobu in the 'Bu (along with his wife and another couple) and our photog only asked him a question or two before Downey inexplicably charged the cameraman.

WTF! Just being playful and it got weirdly out of hand or was RDJ just in a really bad mood? Check out the vid above and see for yourself!

Hmm, good or bad idea? And do you think the actor would even consider it?

Michael Lohan gave a radio interview with Nashville's 107.5 The River today to talk about, that's right, his incarcerated daughter Lindsay Lohan. And apparently he thinks RDJ and co. can help her! The father explains:

"My people are reaching out to Robert Downey Jr. and to Mark Wahlberg. I know both of them and Mark is a tremendous human being. Hopefully they'll see her before she gets out and she'll get in this rehab and get off these prescription meds, and she'll get her life back."

Say what you will, but this is the best idea Michael's had in a while! Lindsay's problems started earlier, but RDJ is that one shining example of a struggling Hollywood talent people have continuously rooted for despite his mishaps. LiLo might actually get it together if she has a serious heart-to-heart with him! Not so sure about Mark Wahlberg though.

Could this be that one bit of hope we've all been waiting for? Is Robert Downey Jr. the one to save Lindsay Lohan?

No, not like that!

Yesterday we spotted the still sexy Robert Downey Jr. doing some superhero research for his upcoming role in the Avengers film at Meltdown Comics on Sunset, and the actor took the time to greet fans and geeks alike before walking out the door with a stack of comic books. Aww, such a sweetheart!