Natalie Portman – Thor: Ragnorak
Portman was reportedly upset with Marvel’s decision to hire Alan Taylor over Patty Jenkins for Thor: The Dark World and declined a role in its follow up. Thor mentions that HE broke up with her – and not the other way around – in the third film but Portman will return with her own hammer in the upcoming Thor: Love and Thunder.
Some of them, sure, but there are some very beloved movies on that list.