Miller recently admitted the relationship had "run its course" and Law has seemingly moved on with another girl from his past - model Cole, who he dated briefly in 2008.
The Talented Mr Ripley star was spotted enjoying a night out with the red-haired beauty at London's new hotspot The Box last week (ends11Mar11), according to Britain's Daily Mail.
A source tells the publication, "Jude and Lily were at a table... being very flirtatious. It was clear they were comfortable with each other."
Cole split from her boyfriend of two years, Enrique Murciano, last month (Feb11).