So what's it all about then?
Uptight lawyer Jason Kelly is just days away from getting married when he gets roped into driving his recently widowed Grandpa Dick down to his beach house. It's not quite the sedate trip he expects though, and things take a turn for the wild when Gramps sets out to prove there's life in the old dog yet. Hilarity ensues etc. etc.
Anyone good in it?
YES ZEFRON. LOTS AND LOTS OF ZEFRON. Proving his comedy credentials once again, Zac is fab as the stick-in-the-mud grandson with an overbearing fiancé. Robert De Niro, meanwhile, provides laugh after laugh after laugh as Grandpa Dick, and Julianne Hough is perfect as aforementioned overbearing fiancé. Also features Zoey Deutch as a love interest, and Parks and Recreation goddess Aubrey Plaza in a typically 'kooky' role.
So it's a comedy... but is it funny?
Yes, yes and yes. There's some gay jokes that are a bit uncomfortable despite the fact they're *supposed* to be verging on homophobic (as old Gramps learns he needs to get with the times) but overall it really does deliver on the El Oh El front.
Highlights include a naked Zac doing the Macarena with nothing but a stuffed bee covering his crotch, a local drug dealer with an ice-cream van and basically anything that comes out of Aubrey Plaza's mouth.
Any bits they should have left out?
Some of the humour is a bit tooooo slapstick (are fart jokes ever really funny when you're past the age of 12?) but they just about get away with it. The resolution/ending is all quite cheesy too, but if you like a good helping of happy ever after, then that shouldn't bother you too much.
If it won an Oscar, it would be for...
Best abs on a man over 50 years old (seriously, De Niro got it going owwwwwwwn).
Basically if you like seeing a half-naked Zac Efron in hilariously weird situations (a la Bad Neighbours), this is one for you. It's slapstick, it's rude, it's completely ridiculous - but you'll laugh-snort into your popcorn, and leave the cinema with a grin slapped all over your mush. What more do you want from comedy, really?