lewap - again, I hope this isn't too detailed - it's a really tough puzzle, it's Sunday pm, and I'm hoping to help!
3a - this is an anagram. Torres wrote a book about the character - this character is the answer, and 'Al' played the role in the film.
3d(i) - You have to merge a word meaning 'chip' with PIN to generate 'one at last'. Think shoes!
9a - definition last 2 words. Wordplay 2 hands with a 'stripped' word meaning 'all' in the middle
16a - Look up the film. Who played Tom C's 'nemesis'? Add 2+2 to this to complete wordplay. Answer Wagnerian.
14d - anagram after taking out 'regularly eleven' from what is 'anagrammed'. Def is whole clue.
23a - yes. wordplay is 2-letters reversed inside 4 letters + Tesla.