A popular and wealthy actor got divorced

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It started with an actor filming an scene of something similar to Bonanza, he got a great fame and wealth, got married and bought a mansion.
Years later, his children grew up, but his life started to go downhill, his wife requested divorce, lost his home and his fame vanished, his son got convinced by his friend to enter a house and almost got shot by the owner, and his daughter tries to reunite her parents but got disappointed as she found out that her father was dating another woman.
The father encourages his son to get a job at the studio as cameraman assistant, but he does not care about his own life, got drunk and arrived late to work.
That’s all I know

Edited question