Jake Gyllenhaal introduced a new mystery woman to his sister Maggie Gyllenhaal and her husband Peter Sarsgaard at Giorgio Baldi Thursday night.

The Prince of Persia actor, who hasn't been serious with anyone since splitting with girlfriend Reese Witherspoon, made sure his dinner date snuck out of the restaurant after him, but X17online caught a glimpse of the couple when she drove them out of the parking lot!

Hmmm, could Jake finally be moving on?