The funny clip shows Szubanski in character as "Kath and Kim's" Sharon, freaking out upon seeing the actor on the red carpet and then getting a kiss on the lips from the hunk, reported Radar online.
As Ledger was about to be interviewed on the red carpet, Szubanski comes up behind him and screams, making the actor jump.
But Ledger handles it like a pro and gives the over-excited Sharon a kiss on the lips and even strokes her face, causing her to drop to the floor.
"And you know, it's really funny, actually, Danni, cause I always thought he was gay," she continued. Then, after nervously opening the envelope, Sharon got to reveal that Ledger had one the award and the two were reunited after their red carpet snog.
"I had the same thing happen to me when I made out with Jake Gyllenhaal."
At the time Ledger had been winning nearly every award going, thanks to his role in "Brokeback Mountain" opposite Jake Gyllenhaal.