Charlize Theron is "excited" about Prince Harry's wedding to Meghan Markle

Asked if she's excited about the wedding, she told 'Entertainment Tonight': "Oh my gosh, yes! I mean, everybody's excited about it, right? I think it's great."

The 42-year-old actress is a "big fan" of Harry and though he's never met Meghan, she's confident he's chosen the right bride.

She added: "He's a great guy. I don't know her, but I know he has good taste so I wish them the best... and I'll be watching!"

Meanwhile, Charlize - who has children Jackson, six, and two-year-old August - recently spoke about how much she struggled with gaining 50lbs for her role as a struggling mother in her new movie, 'Tully'.

She said: "I gained close to 50 pounds for this film. I just I wanted to feel what this woman felt, and I think that was a way for me to get closer to her and get into that mindset.

"You know, it was a huge surprise to me. I got hit in the face pretty hard with depression.

"Yeah, for the first time in my life I was eating so much processed foods and I drank way too much sugar. I was not that fun to be around on this film."

While Charlize enjoyed the first few weeks of tucking into whatever she fancied, it quickly became a chore.

She said: "The first three weeks are always fun because you're just like a kid in a candy store. So it was fun to go and have breakfast at In-N-Out and have two milkshakes.

"And then after three weeks, it's not fun anymore. Like, all of a sudden you're just done eating that amount and then it becomes a job. I remember having to set my alarm in the middle of the night in order to just maintain [the weight].

"I would literally wake up at two in the morning and I'd have a cup of cold macaroni and cheese just next to me.

"I would wake up and I would just eat it...I would just, like, shove it in my throat. It's hard to maintain that weight."