The 51-year-old "Gravity" star and Randall, 49, have been spending a lot of time together and their families are aware about their relationship, reported E! online.
"Sandra and Bryan are getting serious and spending a good amount of time together. Sandra has met Bryan's daughter and family and loves everything about them," an insider said
The former model has a daughter and Bullock adores her a lot.
"He is a true family man but has an edge and that's very appealing for Sandra," the source added.
"Sandra's friends are really happy for her, and they think she is in a great place at this time in her life.
