The Newsroom actress Alison Pill announces engagement to beau Joshua Leonard by posting snap of her huge diamond sparkler

Alison Pill broke the news that she's engaged on Saturday in an Instagram posting.

The Newsroom actress flashed a huge engagement ring while cosying up to beau Joshua Leonard in the snap she shared with her nearly 2,000 followers.

'Let's do this, 2015!!!!', Alison wrote in the caption. 

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Nice ring! Alison Pill flashed her engagement ring on Saturday in an Instagram snap with fiance Joshua Leonard

Nice ring! Alison Pill flashed her engagement ring on Saturday in an Instagram snap with fiance Joshua Leonard

The 29-year-old Canadian actress smiled while showing her new ring with Joshua amid a bright day requiring sunglasses at Joshua Tree National Park in California.

Alison portrayed young producer Maggie Jordan on HBO's political drama The Newsroom created by Aaron Sorkin.

She previously had a featured role in the 2008 biopic Milk starring Sean Penn. 

New year: Alison, shown in September in San Diego, spent the holidays with her beau Joshua

New year: Alison, shown in September in San Diego, spent the holidays with her beau Joshua

Featured role: Alison is shown with John Gallagher Jr in a November scene from HBO's The Newsroom

Featured role: Alison is shown with John Gallagher Jr in a November scene from HBO's The Newsroom

Alison also portrayed Zelda Fitzgerald in the 2011 Woody Allen romantic comedy fantasy film Midnight In Paris.

The former child actress had a brief but memorable scene in the action film Snowpiercer that had a limited release in the US in June.

The film starring Chris Evans has been critically acclaimed and has earned nearly $87 million at the worldwide box office with strong sales on demand. 

Cute couple: Alison and Joshua are shown in June at the Snowpiercer premiere in Los Angeles

Cute couple: Alison and Joshua are shown in June at the Snowpiercer premiere in Los Angeles

Alison also portrayed a teacher in the comedy horror film Cooties.

The film also starring Elijah Wood, Rainn Wilson and Morgan Lily premiered in January 2014 at the Sundance Film Festival.

Alison previoiusly dated actor Jay Baruchel, 32, and they were engaged before splitting in February 2013. 

Memorable scene: Alison portrayed a school teacher in Snowpiercer starring Chris Evans

Memorable scene: Alison portrayed a school teacher in Snowpiercer starring Chris Evans

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