Ashton Kutcher

The stars of Disney's Oz the Great and Powerful stepped out for the world premiere of their film last night in LA, and we were live on the scene to capture all the action on the red carpet. Michelle Williams, James Franco, and Rachel Weisz all attended, as did Mila Kunis, whose boyfriend, Ashton Kutcher, was also on hand for the debut.

James Franco arrived by hot air balloon in a plaid Gucci suit for the event, while Mila walked the "yellow brick road" clad in a cream-colored Dolce & Gabbana dress. Mila told us that this would be her first time seeing the film and that she doesn't get nervous having friends and family watching with her. Though Mila was able to keep some of the film's big secrets under wraps, her costar Rachel Weisz — who wore a stunning orange Victoria Beckham dress — wasn't as tight-lipped, saying, "I have told some friends, but they'll keep it hush hush."

Michelle Williams, who plays Glinda in the movie, wore a white beaded Prada dress on the red carpet and shared her excitement about getting to help design and pick out her character's costumes. While her boyfriend, Jason Segel, and her 7-year-old daughter, Matilda, weren't with her on the red carpet, Michelle told us that she was looking forward to showing the film to her little one in a less "overwhelming" setting. Oz the Great and Powerful hits theaters on March 8.

— Additional reporting by Brittney Stephens

Ashton Kutcher and Mila Kunis brought their PDA courtside last night to watch as the LA Lakers took on the Phoenix Suns at the Staples Center. The usually press-shy couple cuddled up and laughed during the game, which the home team won 91-85. It wasn't all overt affection for Mila and Ashton, though — at one point, they held up a piece of paper to share a private moment. Their night out comes in the middle of a fun week. Ashton turned 35 on Feb. 7, and tomorrow is, of course, Valentine's Day. Tonight, Mila will attend the LA debut of Oz The Great and Powerful — and we'll be LIVE from the premiere! The fun starts tonight at 9:30 p.m. EST/6:30 p.m. PST right here on POPSUGAR. Ashton is expected to attend as well.

Ashton and Mila were joined at last night's matchup by Will Ferrell, who stole the show dressed as an usher with the name tag "Ted Vagina." Rocking his Anchorman 2 beard, Will made headlines by escorting Shaquille O'Neal out of the stadium after a supposed infraction from Shaq.

Ashton Kutcher, David Beckham, and more stars watched as the LA Lakers took on the San Antonio Spurs at LA's Staples Center last night. David, who's a front-row regular, was greeted by Lakers forward, Pau Gasol, before watching the teams battle it out. Ashton also nabbed courtside seats and alternated between spirited reactions and conversing with other fans, including Rebel Wilson. Despite a star power presence, the Lakers couldn't come away with a win, but with only a two-point defeat, the game had both men on the edge of their seats. The two actors may not have been able to celebrate a Lakers victory, but they both have plenty to be excited about. David is the new face of Breitling Watches and Ashton's romance with Mila Kunis continues to heat up.

Mila Kunis and Ashton Kutcher hung out on the field at Met Life Stadium in New Jersey on Monday. The couple chatted with friends before watching the Houston Texans take on the New York Jets. Also on hand to witness the Texans win was Kevin James. Mila and Ashton got out of NYC for the game after hanging out there for the last few weeks while Mila films The Angriest Man in Brooklyn. Mila and Ashton picked up gelato on Tuesday and have shared other sweet PDA-filled dates when Mila's not in front of the cameras. They also had reason to celebrate when Mila was named Esquire's Sexiest Woman Alive for 2012.

Last night's Lakers game brought out a wide range of celebrities! Ashton Kutcher was courtside to watch the Lakers beat the Houston Rockets following his European escapades. He traveled in Rome with pal Lorene Scafaria, then went on to Greece. Ashton partied in Athens with a brunette, but he's since wrapped up the fun. He was seated right next to 2 Broke Girls star Kat Dennings, who was loved up with her guy, Nick Zano.

Cindy Crawford and her husband, Rande Gerber, sat with their bud Alex Rodriguez. The evening gave a chance for ARod to go public with Torrie Wilson, his new blond girlfriend with a history as a star in the WWE. The foursome are fresh off a vacation in Cabo, where they hung out with George Clooney and his own WWE lady, Stacy Keibler.

Ashton Kutcher and Lea Michele got their flirt on last night at the LA premiere of New Year's Eve. She brought along her best friend Jonathan Groff as her date, but later even thanked Ashton on Twitter. Lea wrote to Ashton, "It was such an honor working with you. I cannot thank you enough."

Joining Ashton and a Valentino-clad Lea on the red carpet at Grauman's Chinese Theatre were their other costars, including Zac Efron, Michelle Pfeiffer, and Abigail Breslin. Hilary Swank, meanwhile, posed in a sequined Elie Saab gown. Katherine Heigl threw an arm around husband Josh Kelley, and Josh Duhamel accompanied wife Fergie. Sofia Vergara posed solo and looked amazing in a LBD. The cast moved on to an afterparty held at Hollywood and Highland, where Sofia tweeted that Ludacris joined in on the fun.

Ryan Seacrest was toasted by his friends and colleagues last night at LA's Promise 2011 Gala. The TV personality had his girlfriend Julianne Hough by his side at the event, which featured a special performance of Cirque du Soleil's show IRIS. Ryan was spotlighted for his work with the nonprofit LA's Promise, which serves middle- and high-school students in South LA, during the fundraising celebration. His American Idol costar Randy Jackson was there to help recognize Ryan's efforts, as was Ashton Kutcher and Modern Family's Julie Bowen. Ashton, whose Two and a Half Men debut aired last week, gave a speech and shared some advice from his father at the gala, which Ryan later applauded on Twitter. Ryan was the man of the evening last night, but he and Julianne will trade spots in the spotlight early next month when her movie Footloose hits theaters on Oct. 14.

It was a star-studded affair at last night's Teen Choice Awards in Studio City, CA. Robert Pattinson was still rocking his half haircut from Cosmopolis, though it was Harry Potter and the Deathly Hallows Part 2 that scored the biggest honors of the night. California girls Blake Lively and Cameron Diaz both walked away with surfboards while the Vampire Diaries trio all received awards, too. Both Mark Wahlberg and David Beckham brought their kids to the show: Mark shared the day with his adorable daughter while David brought Cruz, Romeo, and Brooklyn along. Justin Bieber and Selena Gomez showed off their PDA from their seats after hitting the red carpet separately — check out the full list of TCA winners on BuzzSugar.