Starring (Mr. Bean, Blackadder) as Peter Plankton / Spider-Plant Man, this 2005 short film was made for Comic Relief. It also features Jim Broadbent as Doctor Octopus and a hilarious cameo from Ben Affleck as... himself (and Daredevil).
Think Spider-Man is cool? Meet his awkward British cousin: Spider-Plant Man ! Download Spider-Plant Man
[Link to YouTube or Archive.org]