Now this is a hands-on celebrity dad!

Liev Schreiber hit the streets of Brentwood to teach 5-year-old son Sasha how to ride a bike, but the actor had his elbow bandaged up. Let's hope he didn't take a spill.

Looks like mom Naomi Watts was spending quality time with the couple's 4-year-old son Kai. Lucky boy ... he got mom all to himself.

Love this happy family!

Now this is a hands-on celebrity dad!

Liev Schreiber hit the streets of Brentwood to teach 5-year-old son Sasha how to ride a bike, but the actor had his elbow bandaged up. Let's hope he didn't take a spill.

Looks like mom Naomi Watts was spending quality time with the couple's 4-year-old son Kai. Lucky boy ... he got mom all to himself.

Love this happy family!

Ben Affleck has been working extra hard to promote his film Argo. The actor and Golden Globe-winning director is definitely getting the praise he deserves.

The daddy of three is looking a bit tired, though. While he arrived at a sold out screening of Argo at the Aero Theatre in Santa Monica, the scruffy stud seemed a bit worn out.

Argo has made $171.6 million to date at the global box office ... so being a little tired is worth it!

Watch a bit of the Q & A below. Apparently Ben Affleck's mom is in love with George Clooney!

Ben Affleck has been working extra hard to promote his film Argo. The actor and Golden Globe-winning director is definitely getting the praise he deserves.

The daddy of three is looking a bit tired, though. While he arrived at a sold out screening of Argo at the Aero Theatre in Santa Monica, the scruffy stud seemed a bit worn out.

Argo has made $171.6 million to date at the global box office ... so being a little tired is worth it!

Watch a bit of the Q & A below. Apparently Ben Affleck's mom is in love with George Clooney!

Natalie Portman appeared all business as she made her way to a meeting in Century City on
Thursday.

The Thor actress was dressed in a tan trench coat and sunglasses while chatting on the phone during the sunny L.A. day. She must have some big things in the works!

Natalie Portman appeared all business as she made her way to a meeting in Century City on
Thursday.

The Thor actress was dressed in a tan trench coat and sunglasses while chatting on the phone during the sunny L.A. day. She must have some big things in the works!

Is that a new pooch?

Jennifer Lopez and Casper Smart made a stop to see Jimmy Kimmel on his late night show with a new addition to their group as she clutched an adorable little puppy in her arms. How cute!

The 43-year-old Parker actress recently revealed that her divorce with ex-husband Marc Anthony took its toll on her and her career at the time.

“I felt like my whole world had fallen apart too. It was very hard to get up and go to the set every day because I was so sad about what had happened with my marriage," the On The Floor singer told People. "The biggest disappointment was that I wasn’t going to be able to put together the perfect family unit. That fairy tale for them.”

Hopefully she'll get a chance to in the near future!

Is that a new pooch?

Jennifer Lopez and Casper Smart made a stop to see Jimmy Kimmel on his late night show with a new addition to their group as she clutched an adorable little puppy in her arms. How cute!

The 43-year-old Parker actress recently revealed that her divorce with ex-husband Marc Anthony took its toll on her and her career at the time.

“I felt like my whole world had fallen apart too. It was very hard to get up and go to the set every day because I was so sad about what had happened with my marriage," the On The Floor singer told People. "The biggest disappointment was that I wasn’t going to be able to put together the perfect family unit. That fairy tale for them.”

Hopefully she'll get a chance to in the near future!