Heidi Montag's Movie Role Joy

Having recently relieved her husband Spencer Pratt of his managing duties, Heidi Montag has happily announced that she's landed a brand new movie cameo gig.

Tweeting the good news a few days back, the "Hills" hottie tells, "I was just cast in my first feature film comedy! I start filming monday!!!!! this is one of the best days of my life!!! getting ice cream to celebrate!...jump for joy!"

Though it's just a minor role, the film, "Just Go With It," boasts an A-list cast including Jennifer Aniston, Nicole Kidman and Adam Sandler,

Continuing to share her excitement, Heidi once again tweeted on Thursday, writing, "It's a new day, a new beginning...memorizing my script for the feature comedy movie I am filming all next week."