Here are the completed sentences using "although/though" or "however":

1. Leonardo DiCaprio is a talented actor; **however**, he only won an Oscar after six nominations.
2. Jurassic World reached $1 billion in ticket sales; **however**, it had negative reviews.
3. Linh wanted to see Wall-E; **however**, the showing week fell on her semester examination.
4. **Although** it has found its fans over time, Empire Records only made $300,000 at the box office.
5. Many critics enjoyed Cars; **however**, a lot of fans considered it to be one of the Pixar's worst films.
6. Out of Africa didn’t win any acting Oscars **although** it starred Meryl Streep and Robert Redford.
7. The film barely made back its budget; **however**, critics and fans had a lot of positive things to say about it.
8. **Although** animation is not my favourite genre, I really like Zootopia.
9. Titanic is a really good movie; **however**, it is not for anyone under the age of sixteen.
10. **Although** it is loved by fans today, Clue had a rough start when it opened in 1985.