What are some Actors who quit a film role before filming but then decide to come back?

This is going to be a weird question, But What are some actors who decided to quit a film role before filming but then decide to come back?

What I'm saying is an actor who is originally cast in a film role but decides to leave production before shooting and the production has to find another actor, but then the original actor has a change of heart and rejoins the film.

I'm just curious is something like that happen during a film production.