Going Hamm! Jon jumps for joy as he wraps a long weekend of industry schmoozing with the premiere of his new film Marjorie Prime 

When it comes to parties none are bigger than the Sundance Film Festival.

And Jon Hamm faced the first weekend of the annual Hollywood migration to Park City, Utah, with dedication and enthusiasm.

The 45-year-old was everywhere going from event to event, party to party, culminating with a very excited appearance at the premiere of his new film Marjorie Prime.

Snow schmooze: Jon Hamm faced the first weekend of the annual Hollywood migration to Park City, Utah, with dedication and enthusiasm which culminated with a very excited appearance at the premiere of his new film Marjorie Prime on Sunday

Despite a long weekend of schmoozing in the snow, Jon could not contain himself as he spoke ahead of his movie's screening.

The actor literally jumped for joy as the film's director Michael Almereyda introduced the science fiction flick.

Not done there, the Mad Men star then gave co-star Tim Robbins a big high five.

Hooray: The actor literally jumped for joy as the film's director Michael Almereyda introduced the science fiction flick

Very excited: Not done there, the Mad Men star then gave co-star Tim Robbins a big high five

Hold still: Jon was a little calmer on the red carpet, managing to stand still long enough to pose for pictures

For the premiere, the actor dressed in the Sundance got-to, comfy layers.

Jon wore a pair of dark blue jeans with a grey cardigan over a darker shade shirt and added a black jacket and scarf to top it all off.

Jon was a little calmer on the red carpet, managing to stand still long enough to pose for pictures.

Team effort: The actor was joined by his co-stars (L-R) Tim, Lois Smith and Geena Davis

Low key: For the premiere, the actor dressed in the Sundance got-to, comfy layers

Layered up: Jon wore a pair of dark blue jeans with a grey cardigan over a darker shade shirt and added a black jacket and scarf to top it all off

He was joined by his co-stars Tim, Lois Smith and Geena Davis as well as his director.

It was a rather long day for the stars who also stopped in at the Variety Studio presented by Orville Redenbacher's to discuss the film.

Jon also stopped by the IMDb Studio to promote the film, which is based on Jordan Harrison's Pulitzer Prize-nominated play of the same name.

First stop: It was a rather long day for the stars who also stopped in at the Variety Studio to discuss the film

Promo trail: Jon also stopped by the IMDb Studio to promote the film, which is based on Jordan Harrison's Pulitzer Prize-nominated play of the same name

In an attempt to keep his energy up, he grabbed some doughy snacks at Mellow Mushroom Pizza Bakers pop up at Rock & Reilly's.

Jon was not the only one grabbing some pizza, Jason Schawrtzman also was there and jokingly pretended to eat a pretend pizza slice.

Jack Black was also spotted wearing some of the restaurant's lifestyle brand, House Of Shroom, clothing.

Refuel: In an attempt to keep his energy up, he grabbed some doughy snacks at Mellow Mushroom Pizza Bakers pop up at Rock & Reilly's

Nice hat: Jack Black was also spotted wearing some of the restaurant's lifestyle brand, House Of Shroom, clothing

Nom Nom: Jon was not the only one grabbing some pizza, Jason Schawrtzman also was there and jokingly pretended to eat a pretend pizza slice

Jon's long Sunday followed a day of back-to-back appearances the previous day.

The actor, and his co-stars, were treated a private dinner hosted by Nobu.

Geena also attended the dinner at The Lift, and gladly posed up with Jon.

Up late: The actor, and his co-stars, were treated a private dinner hosted by Nobu

All smiles: Geena also attended the dinner at The Lift, and gladly posed up with Jon

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