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Getting Cozy Alert: Chris Evans & Alison Lohman?

Wed., May. 16, 2007 3:02 PM PDT by Marc Malkin

Chris Weeks/WireImage.com, Gregg DeGuire/WireImage.com

Does Alison Lohman find Chris Evans to be fantastic? It apparently looked that way last night.

I'm told Lohman and the Fantastic Four hottie were inseparable at the Xbox 360 Halo 3 sneak preview party in Hollywood. They may have arrived separately; according to my source, Lohman said she and Evans planned on meeting up at the shindig.

"They were by each other's side the whole time," a partygoer tells me. "They seemed to be more than just on friendly terms. They were some of the last to leave."

The happy duo split close to midnight.

Reps for Evans and Lohman did not comment.

Meanwhile, Paris Hilton slipped into the party through a back door. She was overheard telling friends she's become quite skilled at playing Halo since cutting back on going out—following her sentencing to 45 days in the slammer.

She and former beau Josh Henderson chatted for a few minutes, but I'm told Henderson tried his best to avoid the embattled hotel heiress.

What else went down at Halo? Check out Hollywood Party Girl.