Jackman's adorable daughter, Ava, 4, mugs for the cameras in N.Y.C. Plus: Robert Downey Jr., J. Lo, Reese Witherspoon and more

SCI-FINE!

Zoe Saldana and action hunk Sam Worthington stay close Wednesday at the premiere of their new science-fiction movie Avatar at Hollywood's Grauman's Chinese Theatre. The film, helmed by Titanic director James Cameron, hits theaters Friday.