Sarah Jessica Parker is no good at giving relationship advice.

The 'Sex And The City' star - who has three children with her husband of 12 years, Matthew Broderick - isn't an expert when it comes to romance, but thinks it's important for someone to have complete faith in their partner.

She said: "Oh, I am not a good advice giver but I would say the obvious - lack of communication is where things go wrong for people. I'm certainly no expert in relationships, God knows, but you need to be with someone who believes in you 100 per cent. If you don't have that, there's no point."

The 45-year-old actress wants to be happily married for the rest of her life, and has admitted she wants to continue kissing her co-stars and husband until she is 70 or 80.

Discussing whether she expects to star in romantic comedy films for years to come, she quipped: "God, if they'll have me! I hope so. Not just on screen. I hope that someone will kiss me at home."

With such a hectic home and work life, Sarah doesn't get the chance to watch many movies herself and has no idea how well 'Sex and the City' is received.

She added to new! magazine: "I honestly don't know. I'm not a good judge of how the climate has changed. I don't get to see a lot of movies actually. I would like to think that there are roles for women and an audience for women, and I know that our movie surprised people in terms of attendance. I believe that women will always go to the movies to see other women tell their stories."