Here is the full list of all 42 Scene It? Lights, Camera, Action achievements worth 1,000 gamerscore.
Scored 40,000 points in a Short game
Answered 1 question correctly from each block of puzzles in a game
Scored 25,000 points in a Short game
Won a multiplayer game
Every puzzle bed visited
Correctly answered 25 questions about sci-fi/fantasy films
Correctly answered 25 questions about romance films
Correctly answered 25 questions about movies/stars from the 1980s
Correctly answered 25 questions about movies/stars from the 1990s
Correctly answered 25 questions about comedy films
Correctly answered every Movie Clip question in one block of puzzles
Scored 45,000 points in a Long game
Played a Long game
Answered 5 questions in a row correctly
Answered 30 questions correctly during one game
Correctly answered every Sketches, Child's Play, or Now Playing question in one block of puzzles
Played a Short game
Played a multiplayer game
Answered a question correctly
Won a round in a multiplayer game
Correctly answer every Pictogram question in one block of puzzles
Correctly answer every Sequentials question in one block of puzzles
Correctly answer every Trivia question in one block of puzzles
Correctly answer every Star Trailer or Rising Star question in one block of puzzles
Correctly answer every Anagram question in one block of puzzles
Correctly answer every Sound Clip question in one block of puzzles
Correctly answer every Distorted Reality or Invisibles question in one block of puzzles
Correctly answer every What's Missing, Props, or Visual Puzzler question in one block of puzzles
Correctly answer every Quotables or Credit Roll question in one block of puzzles
Score 60,000 points in a Short game
Score 60,000 points in a Long game
Score 85,000 points in a Long game
Answer 10 questions in under 1 second each
Answer 40 questions correctly during one game
Answer 30 questions correctly without answering incorrectly in one game
Answer 60 questions correctly without answering incorrectly in one game
Correctly answer 10 questions in a row
Correctly answer 15 questions in a row
Correctly answer 25 questions about horror films
Correctly answer 3 questions about documentary films
Correctly answer 25 questions about movies/stars from the 1960s
Correctly answer 25 questions about movies/stars from the 1970s