IT'S no surprise Marvel's wickedly funny Guardians of the Galaxy Vol 2 has rocketed to the top of the Australian box office.

The superhero flick is unlikely to face much threat from this week's new releases. Jessica Chastain stars in the handsomely crafted Second World War drama The Zookeeper's Wife, while a reincarnated dog tugs at the heartstrings in A Dog's Purpose.

Comedian Jordan Peele also makes his directorial debut with the acclaimed horror film Get Out.

Here are this week's highlights of the big screen and why you should see them:

A Dog's Purpose (PG)

A dog looks to discover his purpose in life over the course of several lifetimes and owners.

Why you should see it: This overly sappy film about a reincarnated dog shamelessly pulls at the heartstrings of animal lovers. If that's you, bring tissues. Read the story.

The Zookeeper's Wife (M)

The Zookeeper's Wife tells the account of keepers of the Warsaw Zoo, Antonina and Jan Zabinski, who helped save hundreds of people and animals during the Nazi invasion.

Why you should see it: Despite a committed performance from the always-watchable Chastain, this story feels more like an exotic museum piece than the dangerous game of cat and mouse it should be. Read the review.

Get Out (MA 15+)

A young African-American man visits his Caucasian girlfriend's mysterious family estate.

Why you should see it: Comedian Jordan Peele's directorial debut is a funny and thought-provoking take on the horror film genre, blending entertainment and scares.

Continuing

Guardians of the Galaxy Vol 2 (M)

The Guardians must fight to keep their newfound family together as they unravel the mystery of Peter Quill's true parentage. Old foes become new allies and fan-favourite characters from the classic comics will come to our heroes' aid as the Marvel Cinematic Universe continues to expand.

Why you should see it: Remarkably, this sequel manages to be funnier than its predecessor, mixing irreverent humour with dazzling visuals and another excellent soundtrack. It's only weakness? It could have been a bit shorter. Read the review.

Rules Don't Apply (M)

An unconventional love story of an aspiring actress, her determined driver, and the eccentric billionaire who they work for.

Why you should see it: Warren Beatty is excellent as the reclusive, unhinged Howard Hughes. But the screen legend, who also directs, does steal the spotlight from his two young co-stars. Read the review.

Their Finest (M)

Set during the Blitz in London, with the country's morale at stake, Catrin, an untried screenwriter, and a makeshift cast and crew, work under fire to make a film to lift the nation's spirits - and inspire America to join the war. This is a moving portrayal of a young woman finding her way, and her voice, in the mayhem of war and the movies.

Why you should see it: Funny, smart and deliciously unpredictable. Read the review here.

Going in Style (M)

Three senior citizens in their 70s who live together are slowly decaying in endless days with nothing to do but feed the birds. One of them comes up with an idea - rob a bank. They certainly could use the money if they get away with it, and if they are caught, what could happen to three old men?

Why you should see it: The natural talent of stars Morgan Freeman, Michael Caine and Alan Arkin is always something to behold, but don't expect comic gold. Read the review.

Table 19 (M)

Ex-maid of honour Eloise - having been relieved of her duties after being unceremoniously dumped by the best man via text - decides to attend the wedding anyway only to find herself seated with five random guests at the dreaded Table 19.

Why you should see it: If you're looking for something to watch without having to think too hard, this could be for you, however early reviews haven't been favourable. Read the review.