generate questions: In addition to the principal cast, Alessandro Cremona was cast as Marco Sciarra, Stephanie Sigman was cast as Estrella, and Detlef Bothe was cast as a villain for scenes shot in Austria. In February 2015 over fifteen hundred extras were hired for the pre-title sequence set in Mexico, though they were duplicated in the film, giving the effect of around ten thousand extras.
How many actual people were used for the opening sequence of Spectre? {sep_token} Which actor portrayed Marco Sciarra? {sep_token} Estrella was played by which actress? {sep_token} When was the opening scene of Spectre filmed? {sep_token} Where was the pre-title scene in Spectre filmed? {sep_token} In which country were the scenes with Detlef Bothe shot? {sep_token} Who was cast as Marco Sciarra? {sep_token} What character did Stephanie Sigma portray?