The Sundance Film Festival has been jam-packed with parties, red carpets, and star-studded events since it kicked off witha rip-roaring, blizzard-filled opening weekend. The Bing Bar played host to everyone from Drake on Saturday night to Kristen Bell for her House of Lies happy hour on Sunday. Elsewhere in Park City, Emma Roberts partied with her cast of Celeste and Jesse Forever, while Joshua Jackson caught up with his Lay the Favorite costars. LTF was getting a lot of buzz coming into the festival and was completed just days before it premiered.

Aziz Ansari took advantage of Sundance to schedule some stand-up, and he actually acted as Drake's opening act at the Bing Bar on Saturday. During the show, Cuba Gooding Jr. stormed the stage when he thought people weren't giving Aziz the attention he deserved. Aziz also stepped out to support his Parks and Recreation costar Rashida Jones, who made her screenwriting debut in Celeste and Jesse. Lizzy Caplan and Kirsten Dunst's movie Bachelorette hits Sundance on Monday evening, but the girls caught up beforehand as well. On Sunday, Lizzy joined Allison Brie, Christina Hendricks, and her husband Geoffrey Arend all sat together to enjoy a relaxing dinner at Chefdance. Bradley Cooper rolled into town late, since his film The Words is one of the last to premiere at the festival. There'still the final weekend and Sundance awards to come, but here's all the latest party pics from all the awesome events!

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Over the weekend, Matt Damon and his wife, Luciana, celebrated pal Lisa Snowdon's 40th birthday in London, and now we've got exciting images from inside the bash. Matt and Luciana sipped drinks, danced, and chatted with friends Chris Hemsworth and Elsa Pataky, who recently joined them for a sunny vacation. The foursome met up with a group on a mega yacht off the coast of St. Barts earlier this month, and they were spotted riding down a massive slide, swimming, and making a splash in the water. Elsa and Chris are expecting their first child together, and Elsa's baby bump was on display in tiny bikinis throughout the trip.

Leonardo DiCaprio popped up in Mexico on Wednesday with girlfriend, Victoria's Secret model Erin Heatherton, and his best friend Lukas Haas. The getaway comes as a welcome break for Leo, who's been swamped with award-season appearances. Leo's starring role in J. Edgar earned him a nomination in the best actor category at this weekend's SAG Awards, though he'll have to beat out favorites George Clooney and Brad Pitt to take home the statue. Watch the SAG Awards red carpet LIVE right here on PopSugar at 6 p.m. EST/3 p.m. PST Sunday, and tune in to the SAG Awards show at 8 p.m. EST/5 p.m. PST on TNT and TBS. For the latest SAG Awards updates leading up to Sunday, make sure to follow PopSugar and SAG Awards on Twitter.
The 2012 Oscar nominations were revealed Tuesday morning, and many of you were shocked to find out Leo was snubbed by the Academy. He may not have another Oscar nomination under his belt, but Leo's not letting it dampen his spirits — Leo and Erin were spotted zip lining together during their south-of-the-border vacation, so it would seem he's still hanging in there.

Taylor Swift was the lucky lady sharing a table with Chris Martin and Gwyneth Paltrow in London last night. The trio sat down for a meal at The Delaunay, which is a new spot in the city's center. Gwyneth, Chris, and Taylor have long been friends and got together for another meal when Swift was in the UK during March 2011. Chris and Gwyneth have even played matchmaker for Taylor — Gwyneth introduced Taylor to her now ex-boyfriend Jake Gyllenhaal at the end of 2010.
Gwyneth's home in England after a midweek trip to Paris, where her good friend Cameron Diaz spent a few days making the rounds at the couture shows. It seems Gwyneth didn't take a seat in any of the front rows. However, some of her old clothes will be on display soon. Gwyneth's Shakespeare in Love costumes are set to be part of a Hollywood exhibition opening later this year at London's Victoria and Albert Museum.