Extremely large or on a great scale.
(ux)
{{quote-journal|en|date=2013-06-22|volume=407|issue=8841|page=70|magazine=The Economist
(quote-av)
Amazingly spectacular; extraordinary; epic.
(RQ:Doyle Lost World)
colossal, huge
(syn)
high-budget film or play with a high value, cast, etc.
(l) (gloss)