A quick check shows that the 1998 DVD ("Collector's Edition") and 2011 Blu-ray releases are near-identical cropped - so we can't expect any more real estate from the official source. That said, the Blu looks better (but the Blu may be GL-tinkered(tm) and not restored as it was shot & released in 1973).
<-- DVD (region 1) 1998
<-- Blu (r. A/B/C) 2011