Mainly, just because it's an interesting take on one of one of his poems. I'd think most people interested in Larkin would want a link like that to appear in an encyclopedia entry about it him, regardless of what they think of the film itself.  There's also the Hull context—the poem is about Hull, the article features Hull, Larkin is closely associated with Hull, and the film gives those of his readers who haven't had the pleasure of visiting his adoptive city a glimpse of its  unrivalled beauty )