Helena Bonham Carter was 54 in Harry Potter 20th Anniversary: Return to Hogwarts when she played the character 'Self'.
That was over 2 years ago in 2022.
Today she is 57, and has starred in 103 movies in total, 2 of those since Harry Potter 20th Anniversary: Return to Hogwarts was released.
In Harry Potter 20th Anniversary: Return to Hogwarts, I think Helena Bonham Carter looks: