Actor Sean O'Donnell reveals his favorite moment on set of 'MamaBoy' with Gary Busey

For most actors, their first break out role can be limited and one-dimensional. But for Sean O'Donnell, his role in MamaBoyis everything but.

O'Donnell plays the role of Kelly Hankins, a high schooler who has it all -- captain of the baseball team, the perfect girlfriend, and a great family. But all of that changes when his character ends up with a surprise pregnancy.

Gary Busey also stars in the comedy hit, playing the role of coach Dombrowski.

Throughout the movie, O'Donnell's character goes through a range of emotions trying to deal with the effects of his pregnancy.

The movie's red carpet debut is October 20th.

#YouShouldKnow is a feature that showcases rising talents. To see more past interviews, including more features on Sean O'Donnell, click here.

Can you talk to me a bit about how MamaBoy came about?

MamaBoy came about like most things for me, where an audition came through and I went to the audition and they came back and said they were interested in me, and I read more and more on it and talked with them. I was really intrigued by the script. It's not a common story. It was a classic audition, go in, get the part, and make the decision about whether or not it's something I want to actually do. I really enjoyed the script for a lot of reasons so I decided to go for it.

What really drew you to this project?

The main thing was my character Kelly Hankins, he gets to explore every range of human emotion. He starts at the top being captain of the baseball team, with a great family and a beautiful girlfriend and then he gets all of that ripped out from under him and he doesn't know where he falls in life or who he is, and he's self conscious about so many things. Then, he grows to be okay with that and know that he doesn't need anyone else's approval and only his is substantial. As an actor, you want to be able to have an arc throughout a movie, so having one type of emotion is fine, it's fun, but this was challenging for me. Anyone can relate to this character because everyone knows what it's like to be 17 years old and be in high school and feel like your world is falling apart when someone looks at you wrong, because you don't know who you are inside. I really like how that transcends anything.

What went into your character of Kelly off-screen? What kind of work did you have to put in to make him come to life?

I would say the biggest would definitely have to be being pregnant. I could go my entire life without having to be pregnant again, it was not fun. But I really wanted to make that as believable as possible, it's a comedy and it's funny and absurd, but that doesn't mean I'm not going to take it as seriously as possible, so I watched countless hours of pregnant women and how they walk and sit down and get up from sitting. It seems believable. I also had a lot of conversations with my mother about it too. That was probably the hardest prep I had to do -- being pregnant.

What was your favorite moment on set while you were filming?

The first time I was actually pregnant, actually, the first time Gary Busey saw me pregnant. He was a little taken aback by it. It looked very real, like disturbingly real. He was not prepared for it and he needed a minute -- it was hilarious.

What was it like to work alongside Gary Busey, someone who has been an icon in the industry for so long?

It was amazing, honestly. Everyone going into it was saying how you have to be careful because it was going to be hectic, but he was great. He was talking with all of the extras and all of the actors about the history of acting and just giving as many lessons and teachings as he could throughout his days on set, and it was -- he's Gary Busey, he's been around forever -- I was trying to soak up as much as I possibly could from him. I was really blessed to have that experience.

What was the biggest thing you learned about yourself as an actor while working on this project?

I learned how much I really do love acting, which sounds odd, but it was my first project and you never know if you truly like something until you actually do it. I remember thinking three days into filming, which took two months to finish, that this is exactly what I want to do. It is so much fun and so rewarding. Despite all the rejections you get from previous auditions, this makes it all worth it.

What kind of projects do you hope to be working on in the future? What kind of genres do you hope to explore?

I hope to move more into serious drama. If I had a dream project, it would be Perks of a Wallflower, Logan Lerman-type character. That's a big goal of mine.

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