Tom Hanks writing and directing a movie for the two of them about a man re-inventing his life at middle age. The man endures a midlife crisis and joins a kids' Vespa gang; Roberts plays an instructor at a school that Hanks' character enrolls in. (Clearly the midlife-crisis theme is resonant for Hanks – he also owns the rights to the book “How Starbucks Changed My Life,” a memoir about a man who goes to work at Starbucks at age 63 after he was diagnosed with a brain tumor.)
http://latimesblogs.latimes.com/movies/2010/01/julia-roberts-tom-hanks-comeback.html