Whether it’s your favourite old TV show, novel or comic book that’s taking ages to make it to the screen, some people just can’t wait for the film’s trailer to arrive.

Which is when they dig into their editing software, snatch some footage from the web – or fashion their own – and crank out a strictly unofficial promo.

YouTube user WormyT has just released this enjoyably all-star Thundercats trailer, which made us ponder some of the favourite fan made trailers to hit the magical Internet….

Thundercats

A clever, crafty use of footage from all over the sci-fi cinema world and some nifty editing mean that the likes of Brad Pitt, Vin Diesel and Hugh Jackman crop up in the big-screen version of the classic kids’ toon.
Will the final movie be this fun? We wonder.

Star Trek
Okay, so JJ Abrams and co have long since come out and blasted the competition away with their action-filled promo, but before anyone had seen footage, the fans were out in force. This one is a little amateurish, but nicely moody.

Halo
The film seems locked in development hell, but that hasn’t stopped Halo gamers wishing and hoping and turning footage from the games into an all-action promo. It helps that the game features some nifty cut-scenes. Can’t imagine Tetris making for a quality trailer.