The Brazilian site Omelette got the scoop on this first, but that’s all in a foreign language, so let me explain. The rumor is that in front of IMAX screenings of I Am Legend, a 7 minute prologue segment of The Dark Knight will run. This will not be a trailer, but an entire scene with beginning, middle and end.

According to Omelette the segment shall feature Heath Ledger as The Joker - a sort of background if you will, running in parallel with the end of Batman Begins and the start of TDK. Film ick think that the footage will revolve around a bank heist, which was shot in the IMAX format.

This shall only run in front of the IMAX version of I Am Legend, a proper Dark Knight trailer may instead run in normal cinemas, but that is merely conjecture.

We’ll keep you posted!