Those who dismiss 'The Errand Boy' as juvenile comedy in the vein of the awful Tom Green are way out of line - this film in particular is entertaining, genuinely funny, and acted and directed with charm by Jerry Lewis. Perhaps he was funnier in 'Who's Minding The Store' or 'The Nutty Professor', but this one remains my favourite.
It is the story of Morty, an underling at a Hollywood studio where he can cause as many problems as he can - in the canteen, on the sets, in the lift, as an unexpected extra during filming, and by overdubbing his own squeaky vocals over a finished soundtrack. The combined effect of all this is irresistable.
My favourite scene though is the one in the prop room, where Morty seeks advice from a couple of finger puppets about how to improve his life. Cliched, maybe, but unexpected amongst the silliness and really quite effective.