As of October 2023, there are four Thor films in the Marvel Cinematic Universe (MCU). They are: 1. **Thor** (2011) 2. **Thor: The Dark World** (2013) 3. **Thor: Ragnarok** (2017) 4. **Thor: Love and Thunder** (2022) These films follow the character Thor, the Norse god of thunder, as he navigates various challenges, battles, and personal growth within the MCU.

As of October 2023, there has been no official confirmation regarding Chris Hemsworth's involvement in "Thor 5." While he has expressed interest in reprising his role as Thor, Marvel Studios has not announced any plans for a fifth Thor film. Hemsworth's future in the franchise remains uncertain, and fans are eagerly waiting for updates from Marvel about the character's next appearance. Keep an eye on official announcements for the latest information!

Natalie Portman initially expressed frustration with the direction of her character, Jane Foster, in the "Thor" franchise. After "Thor: The Dark World," she was reportedly unhappy with the lack of development for her character and felt sidelined in the story. This led her to step back from the series. However, she returned to the role in "Thor: Love and Thunder" (2022), where her character was given a more prominent and developed storyline, including becoming the Mighty Thor.

As of October 2023, there has been no official announcement regarding a fifth Thor movie. After "Thor: Love and Thunder," which was released in July 2022, Marvel Studios has not confirmed plans for a new Thor installment. However, actor Chris Hemsworth has expressed interest in reprising his role, and there is always the possibility of future developments in the Marvel Cinematic Universe. Fans are encouraged to stay tuned for any updates from Marvel regarding upcoming projects.