Recently I've been doing a reasonably amount of research into script writing, as it's an area I'm interested in. However, I can't quite work out how to describe action. Sometimes it seems to be very matter of fact, short sentences and very basic imagery, at others it's much more like prose in novels. Then, I read a script the other day which had something like this in it: "Jake launches himself out of the wheelchair and proceeds to beat the crap out of the guy" Is this sort of thing normal? I won't name the film, but it's a hugely successful one, and I'm not sure it was definitely an official screenplay, because there were discrepancies between it and the released feature film (could have been an earlier draft), but the use of such an informal phrase in the description seems to go against what I've seen in other places, though I confess to not having read enough screenplays yet. Basically, are there any set rules for writing description in screenplays, or does anything go so long as it gets the point across and isn't overly long? Many thanks.