After retiring from competitive Volleyball, Mroz got married to Jacek Olszewski and in January 2008 announced the couple was expecting their first child.
Daughter Liliana was born four months later and in May 2008 Mroz underwent a surgery for marrow transplant.
She died of an infection fourteen days after that surgery, aged 26. Her story has inspired a movie, „Nad zycie”, that recalls her unique personality, in and also off the Volleyball court, thereby celebrating a great Volleyball player, a lovely wife and caring mom who will be always remembered for her lively attitude and her heroic fight for recovery.
Actress Olga Boladz is portraying Agata Mroz with Michal Zebrowski as her main partner, with the movie having already successfully premiered in Poland.