Corrin recalled that she had to start from scratch when she began preparing for the role.
The demonstrators also dyed the water in the Queen Victoria Memorial fountain red before the police was able to remove them.
The royals will be prepared to act against any unfounded accusations.
The movie, set for release on November 5, follows three days in the life of Princess Diana in 1991.
The Duke of Sussex said there were talks about how his children with the duchess will look like in the early days of their relationship.
"The differential treatment the couple felt had been bestowed upon their son was a major sting to Harry and Meghan."
A previous report had also said that Meghan Markle decided to skip the funeral as she too didn't want herself to be "the centre of attention."
"I know that the four are talking with one another and they're talking by Zoom."
Thomas Markle Sr. said Meghan is no longer the loving daughter she used to be and blames the Duke of Sussex for the change.
Prince William and Kate Middleton reportedly call their eldest "Tips" after famous teabag brand.
"If it were Archie and Lilibet being mocked, I suspect there would be a lawsuit."
"I'm sure Meghan will shock the world if what we see next is her being more on the ground with her charity work."
However, the feeling across the regiment is that it is "not appropriate" to retain the British royal, and senior defence chiefs believe he "should go."
It has long been rumoured that the former American actress might be aiming for a political career in the US.
Angela Levin made the claim while noting that the respect she had for Harry has "gone away" since she wrote his biography.
It is believed that it was Harry who inherited the ring, but he "selflessly" gave it up so his elder brother could propose to Kate.
The couple were previously criticised for failing to mention what personal contribution they have made to the cause.
The Duchess of Sussex updated the band to include birthstones of members of her family.
It was just three months ago when the Duke of Sussex called climate change a "most pressing issue."
Harry Enfield, who plays the heir apparent on the show, dubbed his portrayal "ridiculous" and noted no one would confuse it with the royal's real-life persona.
Fergie said her nephews got on better terms after they came together for the unveiling of their mother Princess Diana's statue.
Reflecting on her time on the show's sets, Corrin said that she is glad she had her "best friend" Josh O'Connor there with her.