Davidson arrived at the Netflix party in Los Angeles alongside close friend Machine Gun Kelly (née Colson Baker), but the two quickly separated once the comedian began talking to the actress.
The two talked intently for most of the night before they were joined by Kelly, Isla Fisher, and Sacha Baron Cohen. But even as the group mingled, Davidson, 25, and Beckinsale, 45, kept their focus on each other.
Eventually, the other members of the group wandered off, and Davidson and Beckinsale continued to chat. One onlooker said they cuddled at the party as well.
Beckinsale was last linked to 23-year-old comedian/actor Matt Rife. The Underworld star shares a child with actor Michael Sheen, whom she dated for eight years, and was married to director Len Wiseman from 2004-2016.