Think for a moment about your extremely annoying younger brother, who hogs all the affection from your doting parents and is near enough selfishness personified. Now imagine this overindulged youngster possessing the exact same mannerisms at 21 as he did when he was seven. A bit heart-rending and miserable right? Well, I think it's time to introduce him to Jonah Hill's indolent character Cyrus, as they might just have more in common than you could ever imagine.

Life couldn't get any worse for divorced recluse John (Reilly). With a social life that is practically non-existent and an ex-wife who is just about to get remarried, it doesn't look like things are on the up for the fuzzy-haired outsider. That is until he bumps into the woman of his dreams Molly (Tomei), who seems to dig his bizarre behaviour and his inebriated state.

After a whirlwind couple of starry-eyed dates, the undeniable chemistry between the two leaves John revelling in his newfound bliss. What could possibly go wrong? Well, as it turns out, John isn't the only man in Molly's life. Her 21-year-old son Cyrus (Hill), an aspiring musician, has been the top bloke since he was born, and there's no way he's giving up his time with her for someone like John. Who will win in the scuffle for Molly's attention and how will John deal with Cyrus's obvious interference in their relationship?

After his mediocre comedy 'Step Brothers' with Will Ferrell, John C Reilly has somehow managed to star in another film that centres around a needy child's battle for a parent's affection. The difference between the two, however, is that 'Cyrus' manages to juxtapose a far superior dose of laughs with a dark underlying sentiment to make for a thoroughly enjoyable film and one lacking in the idiocy that oozed so freely from Ferrell and Reilly in 2008.

Each of the three complex characters battling it out in 'Cyrus' has profound issues that add a surprising depth to a film which may appear to be just another run of the mill comedy. John is the divorced man looking for love, Molly is the woman who had never let herself be loved and Cyrus is the self-centred son-from-hell.

Reilly steps up as the witty leading man and comes out with possibly one of the funniest chat-up lines ever: "What are you doing here in the forest with Shrek?" That's one I don't think is going to catch on somehow.

The chemistry between Hill and Reilly is endearing and every scene they appear in seems as spontaneous as the next. The mother-son bond between Tomei's Molly and Hill's Cyrus is nothing short of a bit creepy and would lead anyone to distance themselves from their little sprog before it's too late.

This is a fun, original and eccentric comedy that comes as an unexpected delight at the end of the summer. I just hope people aren't put off by the unexciting poster that fails to capture the true nature of the film.

Sarah Carty