Not all breakups end with the two exes hating one another, as these very amicable former celeb couples prove.There are plenty of celebs who might not have been able to make it work romantically but have continued to co-parent effectively, work together and - in one case - even continue to get cosy every Christmas with their now adult children. Another made their ex the godfather of their son - now an adult - who they share with a different ex.