Former Doctor Who star Matt Smith has sparked rumours he is dating actress Lily James after they were spotted spending time together during the Cannes International Film Festival in May (14).

The British Tv star further fuelled the romance speculation by recently spending time with Downton Abbey actress James in London, where they were seen enjoying dinner with friends.

A source says, "They looked pretty close and were having a chat, but quickly turned on their heels and headed off in different directions when they noticed people were looking over.

"It was hard not to notice these two famous people stood together in the street, but it seemed as though they weren't keen to be spotted together."

Smith previously dated model Daisy Lowe until 2011, while James has previously been linked to actor Jack Fox.