The plot concerns a fictional 1970s rock band named Strange Fruit, who, after being split up for two decades, are persuaded to get back together to perform at a reunion in the same concert venue where they played their last gig.

The film focuses on the personal lives of the band members and those closest to them, and their individual experiences with approaching middle-age and the success that eluded them.

Hughie Case tells how, due to the pursuit of "fame, fortune and fornication" – and the drug overdose of their original singer, Keith Lovell – this is their last performance.

Twenty years later, a stranger who turns out to be the Festival's founder's son recognises keyboardist Tony Costello and convinces him to reunite the band for an anniversary show.

Gradually, Karen and Tony track down other members: bassist Les Wickes, now a family man and roofer; drummer David "Beano" Baggot, working at a plant nursery and on the run from the taxman; and lead singer Ray Simms who, after years of drug and alcohol abuse, is now sober.

After watching a recorded drunken TV interview in which Les and Beano imply that the band was better with Keith and Brian, Ray breaks down again and quits.

The site's critics consensus reads: "Still Crazy can't completely escape the shadow left by the classic rock mockumentaries of the past, but it earns a commendable number of laughs in its own right.

"[3] Rolling Stone's Peter Travers praised Brian Gibson's direction for crafting a "solid blend of humor and heart", the performances from the main cast (highlighting Nighy's portrayal of Ray), and the musical contributions from Mick Jones and Chris Difford for capturing '70s rock bombast, calling it a "prime piece of entertainment.

"[4] Entertainment Weekly's Lisa Schwarzbaum gave the movie a B+ rating, saying "The ensemble acting is fun, generous, and gentle, and the music […] is as good as Strange Fruit ought to be, with classically grandiose '70s poetic sentiments.

"[5] Marc Savlov from The Austin Chronicle gave initial praise to the film's "wicked comic energy" found early on, but felt it devolves into "a deadly dull mishmash" it never gets out of, saying "The problem with Still Crazy isn't that it's overly earnest (which it is) or that it's too easy to make fun of (minimum effort required), it's that cast and crew alike seem primed for comedy in the film's first half, and then abruptly depart those Nigel Tufnel-ed plains in favor of some serious soul-searching halfway in.

Club found the film "overly dramatic and often dull" compared to This Is Spinal Tap and The Rutles, saying that if you look past its "cheap charm" you have a mishandled topic about middle-aged former rockers who lack sympathy for viewers to care about.