Olivia Wilde dating Jake Gyllenhaal?

Olivia Wilde and Jake Gyllenhaal were recently spotted spending an evening together at a West Hollywood party.

The Cowboys & Aliens star and Gyllenhaal were observed holding hands and being "touchy-feely" with one another during an event at the famed Chateau Marmont hotel, an eyewitness told People.

The source went on to suggest that Wilde held back from being overly flirtatious with the 30-year-old actor, adding: "Olivia was very cool and wasn't fawning over Jake but seemed to like the attention he was giving her."

Despite spending a great deal of time together at the event, the pair reportedly left the Chateau Marmont separately at the end of the night.

Wilde recently denied suggestions that she's dated Justin Timberlake and Bradley Cooper by joking that she has no time for such an active social life.

Gyllenhaal has been previously linked to Taylor Swift and 90210 actress Jessica Lowndes.

Cowboys & Aliens opens on July 29 in the US.

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Watch a trailer for Cowboys & Aliens below: