Actor Zach Galifianakis turned heads at the Los Angeles premiere of his new film The Hangover Part Iii on Monday night (20May13) when he invited a formerly homeless friend as his date. The Due Date star met Elizabeth 'Mimi' Haist at a laundromat in Santa Monica, and after recently discovering the elderly lady had no place to call home, he took it upon himself to find an apartment for the 87 year old and cover all her costs. And, on Monday (20May13), Galifianakis gave his pal a taste of the good life by asking Haist to accompany him to the glitzy Hollywood party at the Westwood Village Theatre, where she was able to meet the actor's "cute" co-star Bradley Cooper. This isn't the first time the actor has invited Haist to a movie premiere - he took her to the opening night of The Hangover Part II and The Campaign, but she was never properly identified and often mistaken for his grandmother. She tells the New York Daily News, "If he's in town, he takes me. Otherwise he lets me take a friend. I dress up nice and a friend helps me with my makeup. It's fun, not something I've ever dreamed I'd experience. The limo takes me home afterwards."