Nothing in Common (1986)

Synopsis
Garry Marshall directed this film which starts as a light comedy but moves into heavy-duty drama later on. David Basner (Tom Hanks in a good performance) works in an ad agency, where he enjoys bantering with his co-workers and meets a lot of women. He hasn't been especially close to his father (Jackie Gleason) and never thought about him much until his Dad is left devastated when his wife of 36 years walks out on him. He is soon faced with serious health problems as well. This propels the elder Basner on a downward slide that affects David and their relationship. ~ Eleanor Mannikka, All Movie Guide