I have been married for 15 years and have found that I really like doling out relationship advice, always solicited of course! But that doesn't mean I don't want to peak inside longstanding marriages and see what these couples have to say about commitment; I like to back up my advice with some outside sources. Married for almost three decades, Tom Hanks and Rita Wilson both have a fair bit to say on the hows and whys their relationship works and has lasted 29 years.