Former child stars Joaquin Phoenix and Gaby Hoffmann posed together at the 59th New York Film Festival screening of their film C'mon C'mon on Monday. The Puerto Rican-born actor - turning 47 this month - was still growing back his hair after shaving the top bald for his role in Ari Aster's Disappointment Blvd. Joaquin - a lifelong outspoken vegan - sported a black Animal Liberation Front hoodie, matching jeans, and Converse low-tops. Reunited: Former child stars Joaquin Phoenix and Gaby Hoffmann posed together at the 59th New York Film Festival screening of their film C'mon C'mon on Monday The 39-year-old actress showcased her eccentric sense of style in a long-sleeve, pattern-clashing maxi-dress and kitten-heeled pumps. Gaby - last seen in Amazon's Transparent - is probably still best known for her early roles in Sleepless in Seattle, Field of Dreams, and Uncle Buck. Both Hoffmann and Phoenix were raised in bohemian families featuring other actors like her Warhol superstar mother Viva and his late big brother River. The Oscar winner plays radio journalist Johnny who takes his eight-year-old nephew Jesse (Woody Norman) on a road trip in the critically-acclaimed black-and-white drama. Committed to his craft: The Puerto Rican-born actor - turning 47 this month - was still growing back his hair after shaving the top bald for his role in Ari Aster's Disappointment Blvd. Man with a message: Joaquin - a lifelong outspoken vegan - sported a black Animal Liberation Front hoodie, matching jeans, and Converse low-tops Native New Yorker: The 39-year-old actress showcased her eccentric sense of style in a long-sleeve, pattern-clashing maxi-dress and kitten-heeled pumps Remember? Gaby - last seen in Amazon's Transparent - is probably still best known for her early roles in Sleepless in Seattle, Field of Dreams, and Uncle Buck He acted as a child in Parenthood and SpaceCamp! Both Hoffmann and Phoenix were raised in bohemian families featuring other actors like her Warhol superstar mother Viva and his late big brother River The three-time Emmy nominee plays Johnny's sister Viv, who needs a break from single motherhood, in C'mon C'mon hitting US/UK theaters November 19. The talented twosome were joined at Elinor Bunin Munroe Film Center by their director Mike Mills. 'I get to compliment Joaquin, which he hates, this is rad,' the 55-year-old Oscar-nominated screenwriter gushed onstage. 'To me, Joaquin did so much more than be this character. I feel like I made this whole film with this person and I couldn't have done it without him. He is my great friend and comrade. His support, faith, and excitement made it happen. So thank you, sweetie.' Critically acclaimed: The Oscar winner plays radio journalist Johnny who takes his eight-year-old nephew Jesse (R, Woody Norman) on a road trip in the black-and-white drama Hitting US/UK theaters November 19! The three-time Emmy nominee plays Johnny's sister Viv, who needs a break from single motherhood, in C'mon C'mon During the Q&A, Phoenix praised his 12-year-old castmate, who 'became, in some ways, at least for me, the barometer of authenticity.' Speaking of children, the Grammy winner has a one-year-old son River with fiancée Rooney Mara, whom he met on the 2012 set of Spike Jonze's film Her. And Gaby has a six-year-old daughter Rosemary with her longtime love, cinematographer Chris Dapkins. Maestro: The talented twosome were joined at Elinor Bunin Munroe Film Center by their director Mike Mills (R) The 55-year-old Oscar-nominated screenwriter (2-R) gushed onstage: 'I get to compliment Joaquin, which he hates, this is rad. To me, Joaquin did so much more than be this character. I feel like I made this whole film with this person and I couldn't have done it without him' Mike continued: 'He is my great friend and comrade. His support, faith, and excitement made it happen. So thank you, sweetie' MIA: During the Q&A, Phoenix praised his 12-year-old castmate, who 'became, in some ways, at least for me, the barometer of authenticity' Speaking of children! The Grammy winner (L) has a one-year-old son River with fiancée Rooney Mara, and Gaby has a six-year-old daughter Rosemary with DP Chris Dapkins All rights reserved for this news site (dailymail) and under his responsibility