GAC review 

This article is off to a good start, but I see some problems with the sourcing, formatting and prose that concerns me.  At this moment the article does not fulfill the GA criteria, but I'm willing to put the nomination on hold in order to allow contributors to work.  Here are some suggestions/comments for improvement:

The references are a mess.  None of them are formatted properly and several of them (IMDb, scifipedia, hunkymalecelebs) are not from reliable sources.  I suggest using citation templates in order to correctly format the links and look for replacement refs for those from disreputable sources.  (habla conmigo) 
Two fansites are linked to in the external links.  Per WP:EL, there should be none.  Also remove the duplicate IMDb link to the awards and nominations page; this is redundant.
:Image:Han2.jpg does not have a fair use rationale.
The use of "influential" in the lead, although sourced, is open to debate.  I would remove it entirely.
More information needs to be given in order for the lead to adhere to WP:LEAD; there is no mention of his early life, music training, family, or cult following.  Nil by Mouth shouldn't be mentioned by itself and more can be said about his film making, as well.
and can be seen singing and playing piano in the 1988 movie Track 29, and tracing over pre-recorded versions of Beethoven's music in Immortal Beloved: Ref?  Also remember to italicize the film name.
The "Music" section is only one sentence long and no date is given.  The biography should follow a chronological timeline.
After graduating from drama school in 1979, Oldman spent almost eight years in theater, winning various awards: such as...?  Ref?
successfully using an American accent: what does "successfully" refer to?  The accent itself?
In October 2007, movie website TheShiznit.co.uk... how is this a notable website/accolade?
Because of its length, I suggest breaking the "Filmography" list into two columns.
Oldman also directed the music video for "Red Rover", a song from Jewish Rap Group Chutzpah's 2nd CD "Hip Hop Fantasy,": the first comma placement (outside of the quotation marks) is correct, the second isn't; there are several of these that need to be fixed throughout the article.
I did not read the prose too closely, but once these issues have been taken care of, I'm willing to give it a second review.  Until then, I'm going to put the nomination on hold.  Please do let me know if you have any questions or comments.  (habla conmigo)