Sean Young is still feeling the effects of her late-night brawl outside the Academy Awards' Governors Ball at the Oscars. Yikes ... she's now sporting a neck brace!

The 52-year-old actress was arrested for reportedly slapping a security guard, but she claims it was his fault.

Following the incident, Young told X17online, "I was well-behaved. It was fine... and the surveillance tape will bear that out … It's atrocious behavior on the Academy's part."

Young says she's still waiting for an apology from the Academy. You know what they say, if the brace fits ...

Two days after being arrested for reportedly slapping a security guard outside the Academy Awards' Governors Ball at the Oscars, Sean Young says she's still waiting for an apology.

The 52-year-old Blade Runner actress says she has not yet received an apology from the Academy ... whom she says is at fault for the security guard incident.

Online reports claim Young was outside the Oscars bash, taking photos with fellow celebs, when security guards asked the actress to leave the party because she didn't have a ticket.

Just yesterday Young told X17online exclusively: "I was well-behaved. It was fine... and the surveillance tape will bear that out … It's atrocious behavior on the Academy's part."

When asked this morning how she's doing, Young tells us her fans have helped her get through this ordeal.