While some celebrity parents are busy with graduation season and prom, Mark Ruffalo had a birthday to celebrate in his household. This week, the Poor Things actor celebrated his eldest son Keen's ...

Now the real fun starts," he wrote in his September birthday tribute to Sunrise. "We love you. Us." Related: Mark Ruffalo Says 13 Going on 30 Is the Film Fans Ask Him About the Most: 'Love That ...

Here's to Brighter Days' Jennifer Garner and Judy Greer Wish 13 Going on 30 Costar Mark Ruffalo a Happy Birthday in Sweet Video: ‘We Love You’ Mark Ruffalo Says 13 Going on 30 Is the Film Fans ...