Kate Winslet has admitted it's "a bit weird" filming a love scene with her Titanic co-star Leonardo DiCaprio in new movie Revolutionary Road.

The pair have remained close friends since they took cinemagoers by storm when they played lovers on the Titanic's ill-fated maiden voyage in the 1997 Oscar-winning movie.

And they have finally reunited in the forthcoming drama, which is being directed by her husband Sam Mendes.

However, Winslet has revealed that the long-awaited second offering between the two actors hasn't been all plain sailing.

Talking about their love scenes, she told Entertainment Weekly, "I just kept saying, 'This is too ... weird,'. And Leo was like, 'Oh, get over it.' And I'm going, 'Yeah, a little reminder: You're my best friend. He's my husband. This is a bit weird.' "

Based on the Richard Yates novel, Revolutionary Road tells the tale of a young couple in the 1950's who are struggling to raise their two children.