The Oscar festivities may come to a close tonight, but LA certainly has been partying like crazy this week.

Aside from a few celeb pit stops at The Night Before Party at The Beverly Hills Hotel, the Weinstein Pre-Oscar party was the place to be last night celebrating their nominated films like Inglourious Basterds, Nine, and A Single Man.

Quentin Tarantino seemed to be honoree of the night as everyone wanted a piece of the director, but the partier who most caught our eye was Awful Truth fave Jake Gyllenhaal…who was seen chatting up another quasi-famous face for part of the night…

Jake and Olivia Munn (Chris Pine‘s ex gf) were speaking closely inside Soho House for part of the night, but we don’t see a romance brewing quite yet for these two.

“It looked totally innocent,” says an eyewitness at the shindig. “They hung for a while but Jake was overheard telling people he was just at the party to have a good time with his friends.”

We’re told the once Oscar golden boy was “smiling all night” as he perused the Hollywood crowd. We just love single (and happy) Jakey, don’t you?!

Still, don’t count the tabloids out for prematurely naming Gyllenhaal and Munn Hollywood’s new couple!

Another stud on the prowl—we told you he so wasn’t dating Jen Aniston—was Gerard Butler who was putting his best game forward chatting up a pretty young thang.

“Gerard was talking with a young blonde who later revealed she had a boyfriend,” an eyewitness tells E!, stressing Butler’s disappointment afterwards.

Still, the yummy Scot looking rather svelte in his suit and didn’t let one misfire hinder his Oscar swagger.

“Everyone was just having a great time,” our source says of the celeb attendees enjoying Soho House’s 360-degree views of Los Angeles, not to mention trays of champagne, a meat-and-cheese bar and hamburger sliders.

Other guests at the soiree included Jamie Foxx, Leonardo Dicaprio, Bar Rafaeli, Russell Brand, Russell Simmons, Kate Bosworth, Rachel Zoe, Nicole Richie, Joel Madden, Gwen Stefani, Sofia Vergara, Colin Firth, Ryan Gosling, Kevin Connolly, and Kelly Osbourne…just to name a few.