Like all social-media-savvy celebrities, the "Watchmen" star took to Twitter to announce some major, life-changing news. "My husband and I welcomed our beautiful, healthy baby boy to this world this morning! Biggest joy of my life!!! #lovemykid," Malin tweeted on April 16. "PS and his name is...Sebastian Zincone :))) Love him more than life itself!! #whatafeeling !!!" We love it when our favorite stars skip the P.R. mouthpiece!