Cindy Lou actor explained why she was the only Who in Whoville without a massive nose

She said: "I do remember having a lot of fun on that set. I mean the prosthetics for example, all the Whos wore prosthetics but I was too young to actually wear the prosthetics so they wrote a line into the film of, 'She hasn't even grown into her nose yet'.

"So they just put a little blush on my nose."

However, seven-year-old Momsen didn't get away that easily.

"I remember it was the first time I'd ever worn a wig in my life. Putting all my hair into the bobby pins and into the wig cap and the big wig everyday.

"It was the first time I ever wore fake eyelashes and I had the fake teeth and I remember with the fake teeth, I hated the taste of the glue that went in. [...] And so I wouldn't take them out once I put them in and I would eat with them and everything," she recalled.

The actors playing Whos also had to take part in 'what we called 'Who School', Momsen says. "Because there's so many acrobats and contortionists and Whos have all these walking on top of balls and all these things," she continues.

Momsen herself had to complete 'about a month' of training 'learning how to do the stunts' because she did 'most of the stunts' herself.

"[I] had to learn all the safety protocols and how to fall down a trap door without getting hurt. I remember that as like 'Who Bootcamp'."

Having gotten away with no prosthetic nose, Momsen - who is recognised 'quite a bit' for her role in the film - resolved: "It was a ball. All the stunts I loved. It was such an amazing thing I got to be a part of that."