The long-awaited film adaptation of Jack Kerouac's classic novel 'On The Road' has premiered at the Cannes Film Festival, though fans of the 1951 book should probably look away, now.

One of the few classics of American literature yet to receive a big-screen adaption, hype for 'On The Road', has been building since Kristen Stewart and 'Control' star Sam Riley signed on the movie, though critics have been less than complimentary. The Guardian's Peter Bradshaw - who has already dished out favourable reviews this week to Brad Pitt's 'Killing Them Softly' and Michael Haneke's 'Amour' - said, "Handsome shots and touching sadness don't compensate for the tedious air of self-congratulation in Walter Salles's road movie". The London Evening Standard were also complimentary of the movie's visuals, though claimed Salles, "struggles to give his story the strong dramatic line it requires and concentrates instead on sequences which illustrate the book best". It all seems like a missed opportunity for the director, who clearly had the material, as well as a promising array of actors at his disposal.

The movie has taken more than 30 years to reach the screen, following Roman Coppola's acquisition of the rights in 1979. Perhaps public opinion will be more positive, when 'On the Road' gets a full release later this year.