The greatest films of all time
Guardian critics dissect the dos and don'ts of cinema's most popular genres
The 25 best sci-fi and fantasy films: 'The most dazzling ideas, the most colourful palettes'
Andrew Pulver boldly goes in search of cinema's most out-of-this-world moments as he introduces our guide to the 25 best science fiction and fantasy films
The 25 best drama and arthouse films: 'They probe the very essence of life'
Jason Solomons rests his cappuccino awhile and contemplates the essential ingredients of the arthouse movie, whose images 'return in half-remembered fragments; in shudders of sexual desire or waves of sadness'
The 25 best action and war films: 'Only Lynx Africa smells worse than napalm in morning'
Paul MacInnes is locked, cocked and ready to rock with some of cinema's most action-packed hits as our critics prepare to reveal the 25 best films in the genre
The 25 best comedy films: 'When the laughs are not forthcoming, film-makers know they have failed'
Ahead of the launch of our 25 best comedy films of all time, Peter Bradshaw dishes out the banana skins and custard tarts as he talks us through the history of the genre and why, far from being trivial, comedy demands our greatest respect
The 25 best crime films: 'The crooks became the cops'
Observer critic Philip French gives a brief history of the crime films to accompany our pick of the finest 25, from the first train robbery to the new wave of time-shuffling thrillers
The 25 best romance films: 'One of them does definitely expire, in the end'
As part of our Film Season's guide to the 25 best films in each genre, here's a brief history of love at the movies, from the pictures of yore that flicked soap in your eyes and put your heart through the mangle to the new crop of gross-out romcoms
