Blockbuster

Solvers must add five extra blocks to the grid. For down entries these blocks separate the two answers to each of five down clues, which are really two clues side-by-side (in either order). In across entries the extra blocks contain multiple letters of answers which would not otherwise fit. In each of the corresponding across clues one letter from the block's contents is omitted from the wordplay: these letters can be arranged to give the name of the protagonist. Solvers should mark the extra blocks in the grid using an appropriate symbol. Numbers in brackets are the total lengths of their clue answers; individual answers consisting of more than one word are indicated. All answers can be found in Collins Dictionary except one unusually-formed adjective found in The Chambers Dictionary and one phrase found in Chambers and at dictionary.com.