Goldie Hawn and Kurt Russell – 39 years

Actors Goldie Hawn and Kurt Russell might not be married, but they’ve still got plenty of wisdom to share when it comes to successful relationships. According to this iconic duo, marriage isn’t important to make a relationship last – it’s just a formality. Considering they’ve been together for almost 40 years now, they might be right!

The pair’s love story started when they met in 1966, although they didn’t have their first date until 17 more years had passed in 1983. Goldie Hawn and Kurt Russell cite compatibility and communication as the two most important things in a successful relationship, also adding that both people need to want to make it work.